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From voze...@apache.org
Subject [03/50] [abbrv] ignite git commit: ignite-1250 JDBC driver: migration to embedded Ignite client node
Date Tue, 15 Sep 2015 08:11:23 GMT
http://git-wip-us.apache.org/repos/asf/ignite/blob/ebb9e2e9/modules/core/src/main/java/org/apache/ignite/internal/jdbc2/JdbcDatabaseMetadata.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/jdbc2/JdbcDatabaseMetadata.java b/modules/core/src/main/java/org/apache/ignite/internal/jdbc2/JdbcDatabaseMetadata.java
new file mode 100644
index 0000000..98a2563
--- /dev/null
+++ b/modules/core/src/main/java/org/apache/ignite/internal/jdbc2/JdbcDatabaseMetadata.java
@@ -0,0 +1,1401 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.ignite.internal.jdbc2;
+
+import java.sql.Connection;
+import java.sql.DatabaseMetaData;
+import java.sql.ResultSet;
+import java.sql.RowIdLifetime;
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.UUID;
+import org.apache.ignite.Ignite;
+import org.apache.ignite.IgniteCache;
+import org.apache.ignite.internal.processors.cache.IgniteCacheProxy;
+import org.apache.ignite.internal.processors.cache.query.GridCacheSqlIndexMetadata;
+import org.apache.ignite.internal.processors.cache.query.GridCacheSqlMetadata;
+import org.apache.ignite.internal.util.typedef.F;
+import org.apache.ignite.internal.util.typedef.internal.U;
+import org.apache.ignite.lang.IgniteCallable;
+import org.apache.ignite.resources.IgniteInstanceResource;
+
+import static java.sql.Connection.TRANSACTION_NONE;
+import static java.sql.ResultSet.CONCUR_READ_ONLY;
+import static java.sql.ResultSet.HOLD_CURSORS_OVER_COMMIT;
+import static java.sql.RowIdLifetime.ROWID_UNSUPPORTED;
+
+/**
+ * JDBC database metadata implementation.
+ */
+public class JdbcDatabaseMetadata implements DatabaseMetaData {
+    /** Connection. */
+    private final JdbcConnection conn;
+
+    /** Metadata. */
+    private Map<String, Map<String, Map<String, String>>> meta;
+
+    /** Index info. */
+    private Collection<List<Object>> indexes;
+
+    /**
+     * @param conn Connection.
+     */
+    JdbcDatabaseMetadata(JdbcConnection conn) {
+        this.conn = conn;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean allProceduresAreCallable() throws SQLException {
+        return true;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean allTablesAreSelectable() throws SQLException {
+        return true;
+    }
+
+    /** {@inheritDoc} */
+    @Override public String getURL() throws SQLException {
+        return conn.url();
+    }
+
+    /** {@inheritDoc} */
+    @Override public String getUserName() throws SQLException {
+        return "";
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean isReadOnly() throws SQLException {
+        return true;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean nullsAreSortedHigh() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean nullsAreSortedLow() throws SQLException {
+        return true;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean nullsAreSortedAtStart() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean nullsAreSortedAtEnd() throws SQLException {
+        return true;
+    }
+
+    /** {@inheritDoc} */
+    @Override public String getDatabaseProductName() throws SQLException {
+        return "Ignite Cache";
+    }
+
+    /** {@inheritDoc} */
+    @Override public String getDatabaseProductVersion() throws SQLException {
+        return "4.1.0";
+    }
+
+    /** {@inheritDoc} */
+    @Override public String getDriverName() throws SQLException {
+        return "Ignite JDBC Driver";
+    }
+
+    /** {@inheritDoc} */
+    @Override public String getDriverVersion() throws SQLException {
+        return "1.0";
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getDriverMajorVersion() {
+        return 1;
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getDriverMinorVersion() {
+        return 0;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean usesLocalFiles() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean usesLocalFilePerTable() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsMixedCaseIdentifiers() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean storesUpperCaseIdentifiers() throws SQLException {
+        return true;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean storesLowerCaseIdentifiers() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean storesMixedCaseIdentifiers() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsMixedCaseQuotedIdentifiers() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean storesUpperCaseQuotedIdentifiers() throws SQLException {
+        return true;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean storesLowerCaseQuotedIdentifiers() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean storesMixedCaseQuotedIdentifiers() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public String getIdentifierQuoteString() throws SQLException {
+        return " ";
+    }
+
+    /** {@inheritDoc} */
+    @Override public String getSQLKeywords() throws SQLException {
+        return "";
+    }
+
+    /** {@inheritDoc} */
+    @Override public String getNumericFunctions() throws SQLException {
+        return "";
+    }
+
+    /** {@inheritDoc} */
+    @Override public String getStringFunctions() throws SQLException {
+        return "";
+    }
+
+    /** {@inheritDoc} */
+    @Override public String getSystemFunctions() throws SQLException {
+        return "";
+    }
+
+    /** {@inheritDoc} */
+    @Override public String getTimeDateFunctions() throws SQLException {
+        return "";
+    }
+
+    /** {@inheritDoc} */
+    @Override public String getSearchStringEscape() throws SQLException {
+        return "";
+    }
+
+    /** {@inheritDoc} */
+    @Override public String getExtraNameCharacters() throws SQLException {
+        return "";
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsAlterTableWithAddColumn() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsAlterTableWithDropColumn() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsColumnAliasing() throws SQLException {
+        return true;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean nullPlusNonNullIsNull() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsConvert() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsConvert(int fromType, int toType) throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsTableCorrelationNames() throws SQLException {
+        return true;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsDifferentTableCorrelationNames() throws SQLException {
+        return true;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsExpressionsInOrderBy() throws SQLException {
+        return true;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsOrderByUnrelated() throws SQLException {
+        return true;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsGroupBy() throws SQLException {
+        return true;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsGroupByUnrelated() throws SQLException {
+        return true;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsGroupByBeyondSelect() throws SQLException {
+        return true;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsLikeEscapeClause() throws SQLException {
+        return true;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsMultipleResultSets() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsMultipleTransactions() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsNonNullableColumns() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsMinimumSQLGrammar() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsCoreSQLGrammar() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsExtendedSQLGrammar() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsANSI92EntryLevelSQL() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsANSI92IntermediateSQL() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsANSI92FullSQL() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsIntegrityEnhancementFacility() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsOuterJoins() throws SQLException {
+        return true;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsFullOuterJoins() throws SQLException {
+        return true;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsLimitedOuterJoins() throws SQLException {
+        return true;
+    }
+
+    /** {@inheritDoc} */
+    @Override public String getSchemaTerm() throws SQLException {
+        return "";
+    }
+
+    /** {@inheritDoc} */
+    @Override public String getProcedureTerm() throws SQLException {
+        return "";
+    }
+
+    /** {@inheritDoc} */
+    @Override public String getCatalogTerm() throws SQLException {
+        return "";
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean isCatalogAtStart() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public String getCatalogSeparator() throws SQLException {
+        return "";
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsSchemasInDataManipulation() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsSchemasInProcedureCalls() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsSchemasInTableDefinitions() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsSchemasInIndexDefinitions() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsSchemasInPrivilegeDefinitions() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsCatalogsInDataManipulation() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsCatalogsInProcedureCalls() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsCatalogsInTableDefinitions() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsCatalogsInIndexDefinitions() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsCatalogsInPrivilegeDefinitions() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsPositionedDelete() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsPositionedUpdate() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsSelectForUpdate() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsStoredProcedures() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsSubqueriesInComparisons() throws SQLException {
+        return true;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsSubqueriesInExists() throws SQLException {
+        return true;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsSubqueriesInIns() throws SQLException {
+        return true;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsSubqueriesInQuantifieds() throws SQLException {
+        return true;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsCorrelatedSubqueries() throws SQLException {
+        return true;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsUnion() throws SQLException {
+        return true;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsUnionAll() throws SQLException {
+        return true;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsOpenCursorsAcrossCommit() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsOpenCursorsAcrossRollback() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsOpenStatementsAcrossCommit() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsOpenStatementsAcrossRollback() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getMaxBinaryLiteralLength() throws SQLException {
+        return 0;
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getMaxCharLiteralLength() throws SQLException {
+        return 0;
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getMaxColumnNameLength() throws SQLException {
+        return 0;
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getMaxColumnsInGroupBy() throws SQLException {
+        return 0;
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getMaxColumnsInIndex() throws SQLException {
+        return 0;
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getMaxColumnsInOrderBy() throws SQLException {
+        return 0;
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getMaxColumnsInSelect() throws SQLException {
+        return 0;
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getMaxColumnsInTable() throws SQLException {
+        return 0;
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getMaxConnections() throws SQLException {
+        return 0;
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getMaxCursorNameLength() throws SQLException {
+        return 0;
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getMaxIndexLength() throws SQLException {
+        return 0;
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getMaxSchemaNameLength() throws SQLException {
+        return 0;
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getMaxProcedureNameLength() throws SQLException {
+        return 0;
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getMaxCatalogNameLength() throws SQLException {
+        return 0;
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getMaxRowSize() throws SQLException {
+        return 0;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean doesMaxRowSizeIncludeBlobs() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getMaxStatementLength() throws SQLException {
+        return 0;
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getMaxStatements() throws SQLException {
+        return 0;
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getMaxTableNameLength() throws SQLException {
+        return 0;
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getMaxTablesInSelect() throws SQLException {
+        return 0;
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getMaxUserNameLength() throws SQLException {
+        return 0;
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getDefaultTransactionIsolation() throws SQLException {
+        return TRANSACTION_NONE;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsTransactions() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsTransactionIsolationLevel(int level) throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsDataDefinitionAndDataManipulationTransactions() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsDataManipulationTransactionsOnly() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean dataDefinitionCausesTransactionCommit() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean dataDefinitionIgnoredInTransactions() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public ResultSet getProcedures(String catalog, String schemaPtrn,
+        String procedureNamePtrn) throws SQLException {
+        return new JdbcResultSet(null,
+            conn.createStatement0(),
+            Collections.<String>emptyList(),
+            Arrays.asList("PROCEDURE_CAT", "PROCEDURE_SCHEM", "PROCEDURE_NAME",
+                "REMARKS", "PROCEDURE_TYPE", "SPECIFIC_NAME"),
+            Arrays.asList(String.class.getName(), String.class.getName(), String.class.getName(),
+                String.class.getName(), Short.class.getName(), String.class.getName()),
+            Collections.<List<?>>emptyList(), true
+        );
+    }
+
+    /** {@inheritDoc} */
+    @Override public ResultSet getProcedureColumns(String catalog, String schemaPtrn, String procedureNamePtrn,
+        String colNamePtrn) throws SQLException {
+        return new JdbcResultSet(null,
+            conn.createStatement0(),
+            Collections.<String>emptyList(),
+            Arrays.asList("PROCEDURE_CAT", "PROCEDURE_SCHEM", "PROCEDURE_NAME",
+                "COLUMN_NAME", "COLUMN_TYPE", "DATA_TYPE", "TYPE_NAME", "PRECISION",
+                "LENGTH", "SCALE", "RADIX", "NULLABLE", "REMARKS", "COLUMN_DEF",
+                "SQL_DATA_TYPE", "SQL_DATETIME_SUB", "CHAR_OCTET_LENGTH",
+                "ORDINAL_POSITION", "IS_NULLABLE", "SPECIFIC_NAME"),
+            Arrays.asList(String.class.getName(), String.class.getName(), String.class.getName(),
+                String.class.getName(), Short.class.getName(), Integer.class.getName(), String.class.getName(),
+                Integer.class.getName(), Integer.class.getName(), Short.class.getName(), Short.class.getName(),
+                Short.class.getName(), String.class.getName(), String.class.getName(), Integer.class.getName(),
+                Integer.class.getName(), Integer.class.getName(), Integer.class.getName(), String.class.getName(),
+                String.class.getName()),
+            Collections.<List<?>>emptyList(), true
+        );
+    }
+
+    /** {@inheritDoc} */
+    @Override public ResultSet getTables(String catalog, String schemaPtrn, String tblNamePtrn,
+        String[] tblTypes) throws SQLException {
+        updateMetaData();
+
+        List<List<?>> rows = new LinkedList<>();
+
+        if (tblTypes == null || Arrays.asList(tblTypes).contains("TABLE"))
+            for (Map.Entry<String, Map<String, Map<String, String>>> schema : meta.entrySet())
+                if (matches(schema.getKey(), schemaPtrn))
+                    for (String tbl : schema.getValue().keySet())
+                        if (matches(tbl, tblNamePtrn))
+                            rows.add(tableRow(schema.getKey(), tbl));
+
+        return new JdbcResultSet(null,
+            conn.createStatement0(),
+            Collections.<String>emptyList(),
+            Arrays.asList("TABLE_CAT", "TABLE_SCHEM", "TABLE_NAME", "TABLE_TYPE", "REMARKS", "TYPE_CAT",
+                "TYPE_SCHEM", "TYPE_NAME", "SELF_REFERENCING_COL_NAME", "REF_GENERATION"),
+            Arrays.asList(String.class.getName(), String.class.getName(), String.class.getName(),
+                String.class.getName(), String.class.getName(), String.class.getName(), String.class.getName(),
+                String.class.getName(), String.class.getName(), String.class.getName()),
+            rows, true
+        );
+    }
+
+    /**
+     * @param schema Schema name.
+     * @param tbl Table name.
+     * @return Table metadata row.
+     */
+    private List<Object> tableRow(String schema, String tbl) {
+        List<Object> row = new ArrayList<>(10);
+
+        row.add(null);
+        row.add(schema);
+        row.add(tbl.toUpperCase());
+        row.add("TABLE");
+        row.add(null);
+        row.add(null);
+        row.add(null);
+        row.add(null);
+        row.add(null);
+        row.add(null);
+
+        return row;
+    }
+
+    /** {@inheritDoc} */
+    @Override public ResultSet getSchemas() throws SQLException {
+        return getSchemas(null, "%");
+    }
+
+    /** {@inheritDoc} */
+    @Override public ResultSet getCatalogs() throws SQLException {
+        return new JdbcResultSet(null,
+            conn.createStatement0(),
+            Collections.<String>emptyList(),
+            Collections.singletonList("TABLE_CAT"),
+            Collections.singletonList(String.class.getName()),
+            Collections.<List<?>>emptyList(),
+            true
+        );
+    }
+
+    /** {@inheritDoc} */
+    @Override public ResultSet getTableTypes() throws SQLException {
+        return new JdbcResultSet(null,
+            conn.createStatement0(),
+            Collections.<String>emptyList(),
+            Collections.singletonList("TABLE_TYPE"),
+            Collections.singletonList(String.class.getName()),
+            Collections.<List<?>>singletonList(Collections.singletonList("TABLE")),
+            true);
+    }
+
+    /** {@inheritDoc} */
+    @Override public ResultSet getColumns(String catalog, String schemaPtrn, String tblNamePtrn,
+        String colNamePtrn) throws SQLException {
+        updateMetaData();
+
+        List<List<?>> rows = new LinkedList<>();
+
+        int cnt = 0;
+
+        for (Map.Entry<String, Map<String, Map<String, String>>> schema : meta.entrySet())
+            if (matches(schema.getKey(), schemaPtrn))
+                for (Map.Entry<String, Map<String, String>> tbl : schema.getValue().entrySet())
+                    if (matches(tbl.getKey(), tblNamePtrn))
+                        for (Map.Entry<String, String> col : tbl.getValue().entrySet())
+                            rows.add(columnRow(schema.getKey(), tbl.getKey(), col.getKey(),
+                                JdbcUtils.type(col.getValue()), JdbcUtils.typeName(col.getValue()),
+                                JdbcUtils.nullable(col.getKey(), col.getValue()), ++cnt));
+
+        return new JdbcResultSet(null,
+            conn.createStatement0(),
+            Collections.<String>emptyList(),
+            Arrays.asList("TABLE_CAT", "TABLE_SCHEM", "TABLE_NAME", "COLUMN_NAME", "DATA_TYPE",
+                "TYPE_NAME", "COLUMN_SIZE", "DECIMAL_DIGITS", "NUM_PREC_RADIX", "NULLABLE",
+                "REMARKS", "COLUMN_DEF", "CHAR_OCTET_LENGTH", "ORDINAL_POSITION", "IS_NULLABLE",
+                "SCOPE_CATLOG", "SCOPE_SCHEMA", "SCOPE_TABLE", "SOURCE_DATA_TYPE", "IS_AUTOINCREMENT"),
+            Arrays.asList(String.class.getName(), String.class.getName(), String.class.getName(),
+                String.class.getName(), Integer.class.getName(), String.class.getName(), Integer.class.getName(),
+                Integer.class.getName(), Integer.class.getName(), Integer.class.getName(), String.class.getName(),
+                String.class.getName(), Integer.class.getName(), Integer.class.getName(), String.class.getName(),
+                String.class.getName(), String.class.getName(), String.class.getName(), Short.class.getName(),
+                String.class.getName()),
+            rows, true
+        );
+    }
+
+    /**
+     * @param schema Schema name.
+     * @param tbl Table name.
+     * @param col Column name.
+     * @param type Type.
+     * @param typeName Type name.
+     * @param nullable Nullable flag.
+     * @param pos Ordinal position.
+     * @return Column metadata row.
+     */
+    private List<Object> columnRow(String schema, String tbl, String col, int type, String typeName,
+        boolean nullable, int pos) {
+        List<Object> row = new ArrayList<>(20);
+
+        row.add(null);
+        row.add(schema);
+        row.add(tbl);
+        row.add(col);
+        row.add(type);
+        row.add(typeName);
+        row.add(null);
+        row.add(null);
+        row.add(10);
+        row.add(nullable ? columnNullable : columnNoNulls);
+        row.add(null);
+        row.add(null);
+        row.add(Integer.MAX_VALUE);
+        row.add(pos);
+        row.add("YES");
+        row.add(null);
+        row.add(null);
+        row.add(null);
+        row.add(null);
+        row.add("NO");
+
+        return row;
+    }
+
+    /** {@inheritDoc} */
+    @Override public ResultSet getColumnPrivileges(String catalog, String schema, String tbl,
+        String colNamePtrn) throws SQLException {
+        return new JdbcResultSet(null,
+            conn.createStatement0(),
+            Collections.<String>emptyList(),
+            Collections.<String>emptyList(),
+            Collections.<String>emptyList(),
+            Collections.<List<?>>emptyList(),
+            true
+        );
+    }
+
+    /** {@inheritDoc} */
+    @Override public ResultSet getTablePrivileges(String catalog, String schemaPtrn,
+        String tblNamePtrn) throws SQLException {
+        return new JdbcResultSet(null,
+            conn.createStatement0(),
+            Collections.<String>emptyList(),
+            Collections.<String>emptyList(),
+            Collections.<String>emptyList(),
+            Collections.<List<?>>emptyList(),
+            true
+        );
+    }
+
+    /** {@inheritDoc} */
+    @Override public ResultSet getBestRowIdentifier(String catalog, String schema, String tbl, int scope,
+        boolean nullable) throws SQLException {
+        return new JdbcResultSet(null,
+            conn.createStatement0(),
+            Collections.<String>emptyList(),
+            Collections.<String>emptyList(),
+            Collections.<String>emptyList(),
+            Collections.<List<?>>emptyList(),
+            true
+        );
+    }
+
+    /** {@inheritDoc} */
+    @Override public ResultSet getVersionColumns(String catalog, String schema, String tbl) throws SQLException {
+        return new JdbcResultSet(null,
+            conn.createStatement0(),
+            Collections.<String>emptyList(),
+            Collections.<String>emptyList(),
+            Collections.<String>emptyList(),
+            Collections.<List<?>>emptyList(),
+            true
+        );
+    }
+
+    /** {@inheritDoc} */
+    @Override public ResultSet getPrimaryKeys(String catalog, String schema, String tbl) throws SQLException {
+        updateMetaData();
+
+        List<List<?>> rows = new LinkedList<>();
+
+        for (Map.Entry<String, Map<String, Map<String, String>>> s : meta.entrySet())
+            if (schema == null || schema.toUpperCase().equals(s.getKey()))
+                for (Map.Entry<String, Map<String, String>> t : s.getValue().entrySet())
+                    if (tbl == null || tbl.toUpperCase().equals(t.getKey()))
+                        rows.add(Arrays.<Object>asList(null, s.getKey().toUpperCase(),
+                            t.getKey().toUpperCase(), "_KEY", 1, "_KEY"));
+
+        return new JdbcResultSet(null,
+            conn.createStatement0(),
+            Collections.<String>emptyList(),
+            Arrays.asList("TABLE_CAT", "TABLE_SCHEM", "TABLE_NAME", "COLUMN_NAME", "KEY_SEQ", "PK_NAME"),
+            Arrays.asList(String.class.getName(), String.class.getName(), String.class.getName(),
+                String.class.getName(), Short.class.getName(), String.class.getName()),
+            rows, true
+        );
+    }
+
+    /** {@inheritDoc} */
+    @Override public ResultSet getImportedKeys(String catalog, String schema, String tbl) throws SQLException {
+        return new JdbcResultSet(null,
+            conn.createStatement0(),
+            Collections.<String>emptyList(),
+            Collections.<String>emptyList(),
+            Collections.<String>emptyList(),
+            Collections.<List<?>>emptyList(),
+            true
+        );
+    }
+
+    /** {@inheritDoc} */
+    @Override public ResultSet getExportedKeys(String catalog, String schema, String tbl) throws SQLException {
+        return new JdbcResultSet(null,
+            conn.createStatement0(),
+            Collections.<String>emptyList(),
+            Collections.<String>emptyList(),
+            Collections.<String>emptyList(),
+            Collections.<List<?>>emptyList(),
+            true
+        );
+    }
+
+    /** {@inheritDoc} */
+    @Override public ResultSet getCrossReference(String parentCatalog, String parentSchema, String parentTbl,
+        String foreignCatalog, String foreignSchema, String foreignTbl) throws SQLException {
+        return new JdbcResultSet(null,
+            conn.createStatement0(),
+            Collections.<String>emptyList(),
+            Collections.<String>emptyList(),
+            Collections.<String>emptyList(),
+            Collections.<List<?>>emptyList(),
+            true
+        );
+    }
+
+    /** {@inheritDoc} */
+    @Override public ResultSet getTypeInfo() throws SQLException {
+        return new JdbcResultSet(null,
+            conn.createStatement0(),
+            Collections.<String>emptyList(),
+            Collections.<String>emptyList(),
+            Collections.<String>emptyList(),
+            Collections.<List<?>>emptyList(),
+            true
+        );
+    }
+
+    /** {@inheritDoc} */
+    @Override public ResultSet getIndexInfo(String catalog, String schema, String tbl, boolean unique,
+        boolean approximate) throws SQLException {
+        Collection<List<?>> rows = new ArrayList<>(indexes.size());
+
+        for (List<Object> idx : indexes) {
+            String idxSchema = (String)idx.get(0);
+            String idxTbl = (String)idx.get(1);
+
+            if ((schema == null || schema.equals(idxSchema)) && (tbl == null || tbl.equals(idxTbl))) {
+                List<Object> row = new ArrayList<>(13);
+
+                row.add(null);
+                row.add(idxSchema);
+                row.add(idxTbl);
+                row.add(idx.get(2));
+                row.add(null);
+                row.add(idx.get(3));
+                row.add((int)tableIndexOther);
+                row.add(idx.get(4));
+                row.add(idx.get(5));
+                row.add((Boolean)idx.get(6) ? "D" : "A");
+                row.add(0);
+                row.add(0);
+                row.add(null);
+
+                rows.add(row);
+            }
+        }
+
+        return new JdbcResultSet(null,
+            conn.createStatement0(),
+            Collections.<String>emptyList(),
+            Arrays.asList("TABLE_CAT", "TABLE_SCHEM", "TABLE_NAME", "NON_UNIQUE", "INDEX_QUALIFIER",
+                "INDEX_NAME", "TYPE", "ORDINAL_POSITION", "COLUMN_NAME", "ASC_OR_DESC", "CARDINALITY",
+                "PAGES", "FILTER_CONDITION"),
+            Arrays.asList(String.class.getName(), String.class.getName(), String.class.getName(),
+                Boolean.class.getName(), String.class.getName(), String.class.getName(), Short.class.getName(),
+                Short.class.getName(), String.class.getName(), String.class.getName(), Integer.class.getName(),
+                Integer.class.getName(), String.class.getName()),
+            rows, true
+        );
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsResultSetType(int type) throws SQLException {
+        return true;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsResultSetConcurrency(int type, int concurrency) throws SQLException {
+        return concurrency == CONCUR_READ_ONLY;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean ownUpdatesAreVisible(int type) throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean ownDeletesAreVisible(int type) throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean ownInsertsAreVisible(int type) throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean othersUpdatesAreVisible(int type) throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean othersDeletesAreVisible(int type) throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean othersInsertsAreVisible(int type) throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean updatesAreDetected(int type) throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean deletesAreDetected(int type) throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean insertsAreDetected(int type) throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsBatchUpdates() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public ResultSet getUDTs(String catalog, String schemaPtrn, String typeNamePtrn,
+        int[] types) throws SQLException {
+        return new JdbcResultSet(null,
+            conn.createStatement0(),
+            Collections.<String>emptyList(),
+            Collections.<String>emptyList(),
+            Collections.<String>emptyList(),
+            Collections.<List<?>>emptyList(),
+            true
+        );
+    }
+
+    /** {@inheritDoc} */
+    @Override public Connection getConnection() throws SQLException {
+        return conn;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsSavepoints() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsNamedParameters() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsMultipleOpenResults() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsGetGeneratedKeys() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public ResultSet getSuperTypes(String catalog, String schemaPtrn,
+        String typeNamePtrn) throws SQLException {
+        return new JdbcResultSet(null,
+            conn.createStatement0(),
+            Collections.<String>emptyList(),
+            Collections.<String>emptyList(),
+            Collections.<String>emptyList(),
+            Collections.<List<?>>emptyList(),
+            true
+        );
+    }
+
+    /** {@inheritDoc} */
+    @Override public ResultSet getSuperTables(String catalog, String schemaPtrn,
+        String tblNamePtrn) throws SQLException {
+        return new JdbcResultSet(null,
+            conn.createStatement0(),
+            Collections.<String>emptyList(),
+            Collections.<String>emptyList(),
+            Collections.<String>emptyList(),
+            Collections.<List<?>>emptyList(),
+            true
+        );
+    }
+
+    /** {@inheritDoc} */
+    @Override public ResultSet getAttributes(String catalog, String schemaPtrn, String typeNamePtrn,
+        String attributeNamePtrn) throws SQLException {
+        return new JdbcResultSet(null,
+            conn.createStatement0(),
+            Collections.<String>emptyList(),
+            Collections.<String>emptyList(),
+            Collections.<String>emptyList(),
+            Collections.<List<?>>emptyList(),
+            true
+        );
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsResultSetHoldability(int holdability) throws SQLException {
+        return holdability == HOLD_CURSORS_OVER_COMMIT;
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getResultSetHoldability() throws SQLException {
+        return HOLD_CURSORS_OVER_COMMIT;
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getDatabaseMajorVersion() throws SQLException {
+        return 1;
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getDatabaseMinorVersion() throws SQLException {
+        return 0;
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getJDBCMajorVersion() throws SQLException {
+        return 1;
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getJDBCMinorVersion() throws SQLException {
+        return 0;
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getSQLStateType() throws SQLException {
+        return 0;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean locatorsUpdateCopy() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsStatementPooling() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public RowIdLifetime getRowIdLifetime() throws SQLException {
+        return ROWID_UNSUPPORTED;
+    }
+
+    /** {@inheritDoc} */
+    @Override public ResultSet getSchemas(String catalog, String schemaPtrn) throws SQLException {
+        updateMetaData();
+
+        List<List<?>> rows = new ArrayList<>(meta.size());
+
+        for (String schema : meta.keySet())
+            if (matches(schema, schemaPtrn))
+                rows.add(Arrays.<Object>asList(schema, null));
+
+        return new JdbcResultSet(null,
+            conn.createStatement0(),
+            Collections.<String>emptyList(),
+            Arrays.asList("TABLE_SCHEM", "TABLE_CATALOG"),
+            Arrays.asList(String.class.getName(), String.class.getName()),
+            rows, true
+        );
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean supportsStoredFunctionsUsingCallSyntax() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean autoCommitFailureClosesAllResultSets() throws SQLException {
+        return false;
+    }
+
+    /** {@inheritDoc} */
+    @Override public ResultSet getClientInfoProperties() throws SQLException {
+        return new JdbcResultSet(null,
+            conn.createStatement0(),
+            Collections.<String>emptyList(),
+            Collections.<String>emptyList(),
+            Collections.<String>emptyList(),
+            Collections.<List<?>>emptyList(),
+            true
+        );
+    }
+
+    /** {@inheritDoc} */
+    @Override public ResultSet getFunctions(String catalog, String schemaPtrn,
+        String functionNamePtrn) throws SQLException {
+        return new JdbcResultSet(null,
+            conn.createStatement0(),
+            Collections.<String>emptyList(),
+            Arrays.asList("FUNCTION_CAT", "FUNCTION_SCHEM", "FUNCTION_NAME",
+                "REMARKS", "FUNCTION_TYPE", "SPECIFIC_NAME"),
+            Arrays.asList(String.class.getName(), String.class.getName(), String.class.getName(),
+                String.class.getName(), Short.class.getName(), String.class.getName()),
+            Collections.<List<?>>emptyList(), true
+        );
+    }
+
+    /** {@inheritDoc} */
+    @Override public ResultSet getFunctionColumns(String catalog, String schemaPtrn, String functionNamePtrn,
+        String colNamePtrn) throws SQLException {
+        return new JdbcResultSet(null,
+            conn.createStatement0(),
+            Collections.<String>emptyList(),
+            Arrays.asList("FUNCTION_CAT", "FUNCTION_SCHEM", "FUNCTION_NAME",
+                "COLUMN_NAME", "COLUMN_TYPE", "DATA_TYPE", "TYPE_NAME", "PRECISION",
+                "LENGTH", "SCALE", "RADIX", "NULLABLE", "REMARKS", "CHAR_OCTET_LENGTH",
+                "ORDINAL_POSITION", "IS_NULLABLE", "SPECIFIC_NAME"),
+            Arrays.asList(String.class.getName(), String.class.getName(), String.class.getName(),
+                String.class.getName(), Short.class.getName(), Integer.class.getName(), String.class.getName(),
+                Integer.class.getName(), Integer.class.getName(), Short.class.getName(), Short.class.getName(),
+                Short.class.getName(), String.class.getName(), Integer.class.getName(), Integer.class.getName(),
+                String.class.getName(), String.class.getName()),
+            Collections.<List<?>>emptyList(), true
+        );
+    }
+
+    /** {@inheritDoc} */
+    @SuppressWarnings("unchecked")
+    @Override public <T> T unwrap(Class<T> iface) throws SQLException {
+        if (!isWrapperFor(iface))
+            throw new SQLException("Database meta data is not a wrapper for " + iface.getName());
+
+        return (T)this;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean isWrapperFor(Class<?> iface) throws SQLException {
+        return iface != null && iface == DatabaseMetaData.class;
+    }
+
+    /** {@inheritDoc} */
+    @Override public ResultSet getPseudoColumns(String catalog, String schemaPtrn, String tblNamePtrn,
+        String colNamePtrn) throws SQLException {
+        return new JdbcResultSet(null,
+            conn.createStatement0(),
+            Collections.<String>emptyList(),
+            Collections.<String>emptyList(),
+            Collections.<String>emptyList(),
+            Collections.<List<?>>emptyList(),
+            true
+        );
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean generatedKeyAlwaysReturned() throws SQLException {
+        return false;
+    }
+
+    /**
+     * Updates meta data.
+     *
+     * @throws SQLException In case of error.
+     */
+    @SuppressWarnings("unchecked")
+    private void updateMetaData() throws SQLException {
+        if (conn.isClosed())
+            throw new SQLException("Connection is closed.");
+
+        try {
+            Ignite ignite = conn.ignite();
+
+            UUID nodeId = conn.nodeId();
+
+            Collection<GridCacheSqlMetadata> metas;
+
+            UpdateMetadataTask task = new UpdateMetadataTask(conn.cacheName(), nodeId == null ? ignite : null);
+
+            metas = nodeId == null ? task.call() : ignite.compute(ignite.cluster().forNodeId(nodeId)).call(task);
+
+            meta = U.newHashMap(metas.size());
+
+            indexes = new ArrayList<>();
+
+            for (GridCacheSqlMetadata m : metas) {
+                String name = m.cacheName();
+
+                if (name == null)
+                    name = "PUBLIC";
+
+                Collection<String> types = m.types();
+
+                Map<String, Map<String, String>> typesMap = U.newHashMap(types.size());
+
+                for (String type : types) {
+                    typesMap.put(type.toUpperCase(), m.fields(type));
+
+                    for (GridCacheSqlIndexMetadata idx : m.indexes(type)) {
+                        int cnt = 0;
+
+                        for (String field : idx.fields()) {
+                            indexes.add(F.<Object>asList(name, type.toUpperCase(), !idx.unique(),
+                                idx.name().toUpperCase(), ++cnt, field, idx.descending(field)));
+                        }
+                    }
+                }
+
+                meta.put(name, typesMap);
+            }
+        }
+        catch (Exception e) {
+            throw new SQLException("Failed to get meta data from Ignite.", e);
+        }
+    }
+
+    /**
+     * Checks whether string matches SQL pattern.
+     *
+     * @param str String.
+     * @param ptrn Pattern.
+     * @return Whether string matches pattern.
+     */
+    private boolean matches(String str, String ptrn) {
+        return str != null && (ptrn == null ||
+            str.toUpperCase().matches(ptrn.toUpperCase().replace("%", ".*").replace("_", ".")));
+    }
+
+    /**
+     *
+     */
+    private static class UpdateMetadataTask implements IgniteCallable<Collection<GridCacheSqlMetadata>> {
+        /** Serial version uid. */
+        private static final long serialVersionUID = 0L;
+
+        /** Ignite. */
+        @IgniteInstanceResource
+        private Ignite ignite;
+
+        /** Cache name. */
+        private final String cacheName;
+
+        /**
+         * @param cacheName Cache name.
+         * @param ignite Ignite.
+         */
+        public UpdateMetadataTask(String cacheName, Ignite ignite) {
+            this.cacheName = cacheName;
+            this.ignite = ignite;
+        }
+
+        /** {@inheritDoc} */
+        @SuppressWarnings("unchecked")
+        @Override public Collection<GridCacheSqlMetadata> call() throws Exception {
+            IgniteCache cache = ignite.cache(cacheName);
+
+            return ((IgniteCacheProxy)cache).context().queries().sqlMetadata();
+        }
+    }
+}

http://git-wip-us.apache.org/repos/asf/ignite/blob/ebb9e2e9/modules/core/src/main/java/org/apache/ignite/internal/jdbc2/JdbcPreparedStatement.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/jdbc2/JdbcPreparedStatement.java b/modules/core/src/main/java/org/apache/ignite/internal/jdbc2/JdbcPreparedStatement.java
new file mode 100644
index 0000000..a99f24c
--- /dev/null
+++ b/modules/core/src/main/java/org/apache/ignite/internal/jdbc2/JdbcPreparedStatement.java
@@ -0,0 +1,411 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.ignite.internal.jdbc2;
+
+import java.io.*;
+import java.math.*;
+import java.net.*;
+import java.sql.*;
+import java.sql.Date;
+import java.util.*;
+
+/**
+ * JDBC prepared statement implementation.
+ */
+public class JdbcPreparedStatement extends JdbcStatement implements PreparedStatement {
+    /** SQL query. */
+    private final String sql;
+
+    /** Arguments count. */
+    private final int argsCnt;
+
+    /**
+     * Creates new prepared statement.
+     *
+     * @param conn Connection.
+     * @param sql SQL query.
+     */
+    JdbcPreparedStatement(JdbcConnection conn, String sql) {
+        super(conn);
+
+        this.sql = sql;
+
+        argsCnt = sql.replaceAll("[^?]", "").length();
+    }
+
+    /** {@inheritDoc} */
+    @Override public ResultSet executeQuery() throws SQLException {
+        ResultSet rs = executeQuery(sql);
+
+        args = null;
+
+        return rs;
+    }
+
+    /** {@inheritDoc} */
+    @Override public int executeUpdate() throws SQLException {
+        ensureNotClosed();
+
+        throw new SQLFeatureNotSupportedException("Updates are not supported.");
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setNull(int paramIdx, int sqlType) throws SQLException {
+        setArgument(paramIdx, null);
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setBoolean(int paramIdx, boolean x) throws SQLException {
+        setArgument(paramIdx, x);
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setByte(int paramIdx, byte x) throws SQLException {
+        setArgument(paramIdx, x);
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setShort(int paramIdx, short x) throws SQLException {
+        setArgument(paramIdx, x);
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setInt(int paramIdx, int x) throws SQLException {
+        setArgument(paramIdx, x);
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setLong(int paramIdx, long x) throws SQLException {
+        setArgument(paramIdx, x);
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setFloat(int paramIdx, float x) throws SQLException {
+        setArgument(paramIdx, x);
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setDouble(int paramIdx, double x) throws SQLException {
+        setArgument(paramIdx, x);
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setBigDecimal(int paramIdx, BigDecimal x) throws SQLException {
+        setArgument(paramIdx, x);
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setString(int paramIdx, String x) throws SQLException {
+        setArgument(paramIdx, x);
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setBytes(int paramIdx, byte[] x) throws SQLException {
+        setArgument(paramIdx, x);
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setDate(int paramIdx, Date x) throws SQLException {
+        setArgument(paramIdx, x);
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setTime(int paramIdx, Time x) throws SQLException {
+        setArgument(paramIdx, x);
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setTimestamp(int paramIdx, Timestamp x) throws SQLException {
+        setArgument(paramIdx, x);
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setAsciiStream(int paramIdx, InputStream x, int len) throws SQLException {
+        ensureNotClosed();
+
+        throw new SQLFeatureNotSupportedException("Streams are not supported.");
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setUnicodeStream(int paramIdx, InputStream x, int len) throws SQLException {
+        ensureNotClosed();
+
+        throw new SQLFeatureNotSupportedException("Streams are not supported.");
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setBinaryStream(int paramIdx, InputStream x, int len) throws SQLException {
+        ensureNotClosed();
+
+        throw new SQLFeatureNotSupportedException("Streams are not supported.");
+    }
+
+    /** {@inheritDoc} */
+    @Override public void clearParameters() throws SQLException {
+        ensureNotClosed();
+
+        args = null;
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setObject(int paramIdx, Object x, int targetSqlType) throws SQLException {
+        setArgument(paramIdx, x);
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setObject(int paramIdx, Object x) throws SQLException {
+        setArgument(paramIdx, x);
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean execute() throws SQLException {
+        return execute(sql);
+    }
+
+    /** {@inheritDoc} */
+    @Override public void addBatch() throws SQLException {
+        ensureNotClosed();
+
+        throw new SQLFeatureNotSupportedException("Updates are not supported.");
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setCharacterStream(int paramIdx, Reader x, int len) throws SQLException {
+        ensureNotClosed();
+
+        throw new SQLFeatureNotSupportedException("Streams are not supported.");
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setRef(int paramIdx, Ref x) throws SQLException {
+        ensureNotClosed();
+
+        throw new SQLFeatureNotSupportedException("SQL-specific types are not supported.");
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setBlob(int paramIdx, Blob x) throws SQLException {
+        ensureNotClosed();
+
+        throw new SQLFeatureNotSupportedException("SQL-specific types are not supported.");
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setClob(int paramIdx, Clob x) throws SQLException {
+        ensureNotClosed();
+
+        throw new SQLFeatureNotSupportedException("SQL-specific types are not supported.");
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setArray(int paramIdx, Array x) throws SQLException {
+        ensureNotClosed();
+
+        throw new SQLFeatureNotSupportedException("SQL-specific types are not supported.");
+    }
+
+    /** {@inheritDoc} */
+    @Override public ResultSetMetaData getMetaData() throws SQLException {
+        ensureNotClosed();
+
+        throw new SQLFeatureNotSupportedException("Meta data for prepared statement is not supported.");
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setDate(int paramIdx, Date x, Calendar cal) throws SQLException {
+        setArgument(paramIdx, x);
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setTime(int paramIdx, Time x, Calendar cal) throws SQLException {
+        setArgument(paramIdx, x);
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setTimestamp(int paramIdx, Timestamp x, Calendar cal) throws SQLException {
+        setArgument(paramIdx, x);
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setNull(int paramIdx, int sqlType, String typeName) throws SQLException {
+        setNull(paramIdx, sqlType);
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setURL(int paramIdx, URL x) throws SQLException {
+        setArgument(paramIdx, x);
+    }
+
+    /** {@inheritDoc} */
+    @Override public ParameterMetaData getParameterMetaData() throws SQLException {
+        ensureNotClosed();
+
+        throw new SQLFeatureNotSupportedException("Meta data for prepared statement is not supported.");
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setRowId(int paramIdx, RowId x) throws SQLException {
+        ensureNotClosed();
+
+        throw new SQLFeatureNotSupportedException("SQL-specific types are not supported.");
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setNString(int paramIdx, String val) throws SQLException {
+        ensureNotClosed();
+
+        throw new SQLFeatureNotSupportedException("SQL-specific types are not supported.");
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setNCharacterStream(int paramIdx, Reader val, long len) throws SQLException {
+        ensureNotClosed();
+
+        throw new SQLFeatureNotSupportedException("SQL-specific types are not supported.");
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setNClob(int paramIdx, NClob val) throws SQLException {
+        ensureNotClosed();
+
+        throw new SQLFeatureNotSupportedException("SQL-specific types are not supported.");
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setClob(int paramIdx, Reader reader, long len) throws SQLException {
+        ensureNotClosed();
+
+        throw new SQLFeatureNotSupportedException("SQL-specific types are not supported.");
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setBlob(int paramIdx, InputStream inputStream, long len) throws SQLException {
+        ensureNotClosed();
+
+        throw new SQLFeatureNotSupportedException("SQL-specific types are not supported.");
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setNClob(int paramIdx, Reader reader, long len) throws SQLException {
+        ensureNotClosed();
+
+        throw new SQLFeatureNotSupportedException("SQL-specific types are not supported.");
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setSQLXML(int paramIdx, SQLXML xmlObj) throws SQLException {
+        ensureNotClosed();
+
+        throw new SQLFeatureNotSupportedException("SQL-specific types are not supported.");
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setObject(int paramIdx, Object x, int targetSqlType,
+        int scaleOrLen) throws SQLException {
+        setArgument(paramIdx, x);
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setAsciiStream(int paramIdx, InputStream x, long len) throws SQLException {
+        ensureNotClosed();
+
+        throw new SQLFeatureNotSupportedException("Streams are not supported.");
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setBinaryStream(int paramIdx, InputStream x, long len) throws SQLException {
+        ensureNotClosed();
+
+        throw new SQLFeatureNotSupportedException("Streams are not supported.");
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setCharacterStream(int paramIdx, Reader x, long len) throws SQLException {
+        ensureNotClosed();
+
+        throw new SQLFeatureNotSupportedException("Streams are not supported.");
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setAsciiStream(int paramIdx, InputStream x) throws SQLException {
+        ensureNotClosed();
+
+        throw new SQLFeatureNotSupportedException("Streams are not supported.");
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setBinaryStream(int paramIdx, InputStream x) throws SQLException {
+        ensureNotClosed();
+
+        throw new SQLFeatureNotSupportedException("Streams are not supported.");
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setCharacterStream(int paramIdx, Reader x) throws SQLException {
+        ensureNotClosed();
+
+        throw new SQLFeatureNotSupportedException("Streams are not supported.");
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setNCharacterStream(int paramIdx, Reader val) throws SQLException {
+        ensureNotClosed();
+
+        throw new SQLFeatureNotSupportedException("SQL-specific types are not supported.");
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setClob(int paramIdx, Reader reader) throws SQLException {
+        ensureNotClosed();
+
+        throw new SQLFeatureNotSupportedException("SQL-specific types are not supported.");
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setBlob(int paramIdx, InputStream inputStream) throws SQLException {
+        ensureNotClosed();
+
+        throw new SQLFeatureNotSupportedException("SQL-specific types are not supported.");
+    }
+
+    /** {@inheritDoc} */
+    @Override public void setNClob(int paramIdx, Reader reader) throws SQLException {
+        ensureNotClosed();
+
+        throw new SQLFeatureNotSupportedException("SQL-specific types are not supported.");
+    }
+
+    /**
+     * Sets query argument value.
+     *
+     * @param paramIdx Index.
+     * @param val Value.
+     * @throws SQLException If index is invalid.
+     */
+    private void setArgument(int paramIdx, Object val) throws SQLException {
+        ensureNotClosed();
+
+        if (paramIdx < 1 || paramIdx > argsCnt)
+            throw new SQLException("Parameter index is invalid: " + paramIdx);
+
+        if (args == null)
+            args = new Object[argsCnt];
+
+        args[paramIdx - 1] = val;
+    }
+}

http://git-wip-us.apache.org/repos/asf/ignite/blob/ebb9e2e9/modules/core/src/main/java/org/apache/ignite/internal/jdbc2/JdbcQueryTask.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/jdbc2/JdbcQueryTask.java b/modules/core/src/main/java/org/apache/ignite/internal/jdbc2/JdbcQueryTask.java
new file mode 100644
index 0000000..ac711b8
--- /dev/null
+++ b/modules/core/src/main/java/org/apache/ignite/internal/jdbc2/JdbcQueryTask.java
@@ -0,0 +1,361 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.ignite.internal.jdbc2;
+
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Iterator;
+import java.util.List;
+import java.util.UUID;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.TimeUnit;
+import org.apache.ignite.Ignite;
+import org.apache.ignite.IgniteCache;
+import org.apache.ignite.IgniteJdbcDriver;
+import org.apache.ignite.IgniteSystemProperties;
+import org.apache.ignite.cache.query.QueryCursor;
+import org.apache.ignite.cache.query.SqlFieldsQuery;
+import org.apache.ignite.internal.processors.cache.QueryCursorImpl;
+import org.apache.ignite.internal.processors.query.GridQueryFieldMetadata;
+import org.apache.ignite.internal.util.typedef.CAX;
+import org.apache.ignite.internal.util.typedef.internal.U;
+import org.apache.ignite.lang.IgniteCallable;
+import org.apache.ignite.resources.IgniteInstanceResource;
+
+/**
+ * Task for SQL queries execution through {@link IgniteJdbcDriver}.
+ * <p>
+ * Not closed cursors will be removed after {@link #RMV_DELAY} milliseconds.
+ * This parameter can be configured via {@link IgniteSystemProperties#IGNITE_JDBC_DRIVER_CURSOR_REMOVE_DELAY}
+ * system property.
+ */
+class JdbcQueryTask implements IgniteCallable<JdbcQueryTask.QueryResult> {
+    /** Serial version uid. */
+    private static final long serialVersionUID = 0L;
+
+    /** How long to store open cursor. */
+    private static final long RMV_DELAY = IgniteSystemProperties.getLong(
+        IgniteSystemProperties.IGNITE_JDBC_DRIVER_CURSOR_REMOVE_DELAY, 600000);
+
+    /** Scheduler. */
+    private static final ScheduledExecutorService SCHEDULER = Executors.newScheduledThreadPool(1);
+
+    /** Open cursors. */
+    private static final ConcurrentMap<UUID, Cursor> CURSORS = new ConcurrentHashMap<>();
+
+    /** Ignite. */
+    @IgniteInstanceResource
+    private Ignite ignite;
+
+    /** Uuid. */
+    private final UUID uuid;
+
+    /** Cache name. */
+    private final String cacheName;
+
+    /** Sql. */
+    private final String sql;
+
+    /** Args. */
+    private final Object[] args;
+
+    /** Fetch size. */
+    private final int fetchSize;
+
+    /** Local execution flag. */
+    private final boolean loc;
+
+    /** Local query flag. */
+    private final boolean locQry;
+
+    /** Collocated query flag. */
+    private final boolean collocatedQry;
+
+    /**
+     * @param ignite Ignite.
+     * @param cacheName Cache name.
+     * @param sql Sql query.
+     * @param loc Local execution flag.
+     * @param args Args.
+     * @param fetchSize Fetch size.
+     * @param uuid UUID.
+     * @param locQry Local query flag.
+     * @param collocatedQry Collocated query flag.
+     */
+    public JdbcQueryTask(Ignite ignite, String cacheName, String sql,
+        boolean loc, Object[] args, int fetchSize, UUID uuid, boolean locQry, boolean collocatedQry) {
+        this.ignite = ignite;
+        this.args = args;
+        this.uuid = uuid;
+        this.cacheName = cacheName;
+        this.sql = sql;
+        this.fetchSize = fetchSize;
+        this.loc = loc;
+        this.locQry = locQry;
+        this.collocatedQry = collocatedQry;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JdbcQueryTask.QueryResult call() throws Exception {
+        Cursor cursor = CURSORS.get(uuid);
+
+        List<String> tbls = null;
+        List<String> cols = null;
+        List<String> types = null;
+
+        boolean first;
+
+        if (first = (cursor == null)) {
+            IgniteCache<?, ?> cache = ignite.cache(cacheName);
+
+            SqlFieldsQuery qry = new SqlFieldsQuery(sql).setArgs(args);
+
+            qry.setPageSize(fetchSize);
+            qry.setLocal(locQry);
+            qry.setCollocated(collocatedQry);
+
+            QueryCursor<List<?>> qryCursor = cache.query(qry);
+
+            Collection<GridQueryFieldMetadata> meta = ((QueryCursorImpl<List<?>>)qryCursor).fieldsMeta();
+
+            tbls = new ArrayList<>(meta.size());
+            cols = new ArrayList<>(meta.size());
+            types = new ArrayList<>(meta.size());
+
+            for (GridQueryFieldMetadata desc : meta) {
+                tbls.add(desc.typeName());
+                cols.add(desc.fieldName().toUpperCase());
+                types.add(desc.fieldTypeName());
+            }
+
+            CURSORS.put(uuid, cursor = new Cursor(qryCursor, qryCursor.iterator()));
+        }
+
+        List<List<?>> rows = new ArrayList<>();
+
+        for (List<?> row : cursor) {
+            List<Object> row0 = new ArrayList<>(row.size());
+
+            for (Object val : row)
+                row0.add(JdbcUtils.sqlType(val) ? val : val.toString());
+
+            rows.add(row0);
+
+            if (rows.size() == fetchSize) // If fetchSize is 0 then unlimited
+                break;
+        }
+
+        boolean finished = !cursor.hasNext();
+
+        if (finished)
+            remove(uuid, cursor);
+        else if (first) {
+            if (!loc)
+                scheduleRemoval(uuid, RMV_DELAY);
+        }
+        else if (!loc && !CURSORS.replace(uuid, cursor, new Cursor(cursor.cursor, cursor.iter)))
+            assert !CURSORS.containsKey(uuid) : "Concurrent cursor modification.";
+
+        return new QueryResult(uuid, finished, rows, cols, tbls, types);
+    }
+
+    /**
+     * Schedules removal of stored cursor in case of remote query execution.
+     *
+     * @param uuid Cursor UUID.
+     * @param delay Delay in milliseconds.
+     */
+    private void scheduleRemoval(final UUID uuid, long delay) {
+        assert !loc;
+
+        SCHEDULER.schedule(new CAX() {
+            @Override public void applyx() {
+                while (true) {
+                    Cursor c = CURSORS.get(uuid);
+
+                    if (c == null)
+                        break;
+
+                    // If the cursor was accessed since last scheduling then reschedule.
+                    long untouchedTime = U.currentTimeMillis() - c.lastAccessTime;
+
+                    if (untouchedTime < RMV_DELAY) {
+                        scheduleRemoval(uuid, RMV_DELAY - untouchedTime);
+
+                        break;
+                    }
+                    else if (remove(uuid, c))
+                        break;
+                }
+            }
+        }, delay, TimeUnit.MILLISECONDS);
+    }
+
+    /**
+     * @param uuid Cursor UUID.
+     * @param c Cursor.
+     * @return {@code true} If succeeded.
+     */
+    private static boolean remove(UUID uuid, Cursor c) {
+        boolean rmv = CURSORS.remove(uuid, c);
+
+        if (rmv)
+            c.cursor.close();
+
+        return rmv;
+    }
+
+    /**
+     * Closes and removes cursor.
+     *
+     * @param uuid Cursor UUID.
+     */
+    static void remove(UUID uuid) {
+        Cursor c = CURSORS.remove(uuid);
+
+        if (c != null)
+            c.cursor.close();
+    }
+
+
+    /**
+     * Result of query execution.
+     */
+    static class QueryResult implements Serializable {
+        /** Serial version uid. */
+        private static final long serialVersionUID = 0L;
+
+        /** Uuid. */
+        private final UUID uuid;
+
+        /** Finished. */
+        private final boolean finished;
+
+        /** Rows. */
+        private final List<List<?>> rows;
+
+        /** Tables. */
+        private final List<String> tbls;
+
+        /** Columns. */
+        private final List<String> cols;
+
+        /** Types. */
+        private final List<String> types;
+
+        /**
+         * @param uuid UUID..
+         * @param finished Finished.
+         * @param rows Rows.
+         * @param cols Columns.
+         * @param tbls Tables.
+         * @param types Types.
+         */
+        public QueryResult(UUID uuid, boolean finished, List<List<?>> rows, List<String> cols,
+            List<String> tbls, List<String> types) {
+            this.cols = cols;
+            this.uuid = uuid;
+            this.finished = finished;
+            this.rows = rows;
+            this.tbls = tbls;
+            this.types = types;
+        }
+
+        /**
+         * @return Query result rows.
+         */
+        public List<List<?>> getRows() {
+            return rows;
+        }
+
+        /**
+         * @return Tables metadata.
+         */
+        public List<String> getTbls() {
+            return tbls;
+        }
+
+        /**
+         * @return Columns metadata.
+         */
+        public List<String> getCols() {
+            return cols;
+        }
+
+        /**
+         * @return Types metadata.
+         */
+        public List<String> getTypes() {
+            return types;
+        }
+
+        /**
+         * @return Query UUID.
+         */
+        public UUID getUuid() {
+            return uuid;
+        }
+
+        /**
+         * @return {@code True} if it is finished query.
+         */
+        public boolean isFinished() {
+            return finished;
+        }
+    }
+
+    /**
+     * Cursor.
+     */
+    private static final class Cursor implements Iterable<List<?>> {
+        /** Cursor. */
+        final QueryCursor<List<?>> cursor;
+
+        /** Iterator. */
+        final Iterator<List<?>> iter;
+
+        /** Last access time. */
+        final long lastAccessTime;
+
+        /**
+         * @param cursor Cursor.
+         * @param iter Iterator.
+         */
+        private Cursor(QueryCursor<List<?>> cursor, Iterator<List<?>> iter) {
+            this.cursor = cursor;
+            this.iter = iter;
+            this.lastAccessTime = U.currentTimeMillis();
+        }
+
+        /** {@inheritDoc} */
+        @Override public Iterator<List<?>> iterator() {
+            return iter;
+        }
+
+        /**
+         * @return {@code True} if cursor has next element.
+         */
+        public boolean hasNext() {
+            return iter.hasNext();
+        }
+    }
+}


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