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From Jeff Butler <jeffgbut...@gmail.com>
Subject Re: Need support for Dynamic procedure invocation
Date Fri, 14 May 2010 11:22:59 GMT
This won't work (as you've discovered).  iBATIS 2.x does not reparse
the string for variables after string substitution.  You'll need to do
this with the dynamic tags, or you'll need to compose the entire
string (including parameter values - like {call myproc('fred')}).

Jeff Butler


On Fri, May 14, 2010 at 4:12 AM, Nicky Jha <nicky.jha@jpmchase.com> wrote:
> Hi Team,
>
>
>
> I am having hard time resolving following issue.Please help.
>
> We are using Ibatis 2.X.
>
> In our application we want capability to invoke stored procedure by reading
> it from property xml file.We provide procedure name parameters, parameters
> type to  property xml file.
>
> Now from this xml file I have created one dynamic procedure string like
> procedureName(#stringVal1#,#stringVal2#,#stringVal3#,#intVal1#,#byteVal1#).
>
> Now I want to call this procedure from Ibatis SQL mapping XML like this
>
>
>
> <procedure id="executeCopyProcs"
> parameterClass="com.jpmorgan.pyramid.pyrsyst.configure.ProcParameterMapper">
>
> {call $procedureName$ }
>
>
>
> </procedure>
>
>
>
> Please refer below for ProcParameterMapper class. Now as soon as iBatis sees
>  $procedureName$, it replaces it with say
> (#stringVal1#,#stringVal2#,#stringVal3#,#intVal1#,#byteVal1#) but it does
> not replace the placeHolder(#), it passes on this as it is.Which is a issue.
>
>
>
> If we type
> procedureName(#stringVal1#,#stringVal2#,#stringVal3#,#intVal1#,#byteVal1)
> directly into SQL mapping XML, it replaces place holder, but with string
> substitution , it does not work.We can't type directly into mapping xML, as
> this string is composed at run time.Also dynamic tags are not of help, as
> logic to create
> (#stringVal1#,#stringVal2#,#stringVal3#,#intVal1#,#byteVal1#) complex
> procedure with different types of parameter can't be written in mapping
> XML.At least I am unable to do.
>
>
>
> I am really struck.Please suggest us the best way to deal with it.
>
>
>
>
>
>
>
>
>
>
>
>
>
> package com.jpmorgan.pyramid.pyrsyst.configure;
>
>
>
> import java.lang.reflect.Field;
>
>
>
> public class ProcParameterMapper {
>
>
>
>       StringBuffer procedureName = new StringBuffer("");
>
>       boolean firstParam = true;
>
>       boolean lastParam = false;
>
>
>
>       String stringVal1;
>
>       String stringVal2;
>
>       String stringVal3;
>
>       String stringVal4;
>
>       String stringVal5;
>
>       String stringVal6;
>
>       String stringVal7;
>
>       String stringVal8;
>
>       String stringVal9;
>
>       String stringVal10;
>
>
>
>       int intVal1;
>
>       int intVal2;
>
>       int intVal3;
>
>       int intVal4;
>
>       int intVal5;
>
>       int intVal6;
>
>       int intVal7;
>
>       int intVal8;
>
>       int intVal9;
>
>       int intVal10;
>
>
>
>       byte byteVal1;
>
>       byte byteVal2;
>
>       byte byteVal3;
>
>       byte byteVal4;
>
>       byte byteVal5;
>
>
>
>       public void setStringVal(String value, int count,String jdbcType)
> throws ConfigureException {
>
>
>
>             Field[] field = ProcParameterMapper.class.getDeclaredFields();
>
>
>
>             for (int i = 0; i < field.length; i++) {
>
>                   try {
>
>                         if
> (field[i].getName().endsWith(String.valueOf(count))
>
>                                     && ("String")
>
>
> .equals(field[i].getType().getSimpleName())) {
>
>                               field[i].set(this, value);
>
>                               if (firstParam) {
>
>                                     procedureName.append("(#"
+
> field[i].getName()+"#");
>
>                                     firstParam = false;
>
>                               } else if (lastParam) {
>
>                                     procedureName.append(",#"
+
> field[i].getName() +"#)");
>
>                               } else {
>
>                                     procedureName.append(",#"
+
> field[i].getName()+"#");
>
>                               }
>
>                               break;
>
>
>
>                         }
>
>                   } catch (Exception e) {
>
>                         throw new ConfigureException(
>
>                                     "Exception setting
String value in
> paramMapper"
>
>                                                
+ e.getStackTrace());
>
>                   }
>
>
>
>             }
>
>
>
>       }
>
>
>
>       public void setIntVal(int value, int count,String jdbcType) throws
> ConfigureException {
>
>
>
>             Field[] field = ProcParameterMapper.class.getDeclaredFields();
>
>
>
>             for (int i = 0; i < field.length; i++) {
>
>                   try {
>
>                         if
> (field[i].getName().endsWith(String.valueOf(count))
>
>                                     &&
> ("int").equals(field[i].getType().getSimpleName())) {
>
>
>
>                               field[i].set(this, value);
>
>                               if (firstParam) {
>
>                                     procedureName.append("(#"
+
> field[i].getName()+"#");
>
>                                     firstParam = false;
>
>                               } else if (lastParam) {
>
>                                     procedureName.append(",#"
+
> field[i].getName() +"#)");
>
>                               } else {
>
>                                     procedureName.append(",#"
+
> field[i].getName()+"#");
>
>                               }
>
>                               break;
>
>                         }
>
>                   } catch (Exception e) {
>
>                         throw new ConfigureException(
>
>                                     "Exception setting
int value in
> paramMapper"
>
>                                                
+ e.getStackTrace());
>
>                   }
>
>
>
>             }
>
>
>
>       }
>
>
>
>       public void setByteVal(Byte value, int count,String jdbcType) throws
> ConfigureException {
>
>
>
>             Field[] field = ProcParameterMapper.class.getDeclaredFields();
>
>
>
>             for (int i = 0; i < field.length; i++) {
>
>                   try {
>
>                         if
> (field[i].getName().endsWith(String.valueOf(count))
>
>                                     &&
> ("byte").equals(field[i].getType().getSimpleName())) {
>
>
>
>                               field[i].set(this, value);
>
>                               if (firstParam) {
>
>                                     procedureName.append("(#"
+
> field[i].getName()+"#");
>
>                                     firstParam = false;
>
>                               } else if (lastParam) {
>
>                                     procedureName.append(",#"
+
> field[i].getName() + "#)");
>
>                               } else {
>
>                                     procedureName.append(",#"
+
> field[i].getName()+"#");
>
>                               }
>
>                               break;
>
>                         }
>
>                   } catch (Exception e) {
>
>                         throw new ConfigureException(
>
>                                     "Exception setting
byte value in
> paramMapper"
>
>                                                
+ e.getStackTrace());
>
>                   }
>
>
>
>             }
>
>
>
>       }
>
>
>
>       public String toString() {
>
>
>
>             return new String("stringVal1 is" + stringVal1 + "stringVal2 is"
>
>                         + stringVal2 + "stringVal3 is" + stringVal3
+
> "intVal1 is"
>
>                         + intVal1 + "intVal2 is" + intVal2 + "intVal3
is" +
> intVal3);
>
>
>
>       }
>
>
>
>       public void setProcedure(String procName) {
>
>             procedureName.append(procName);
>
>
>
>       }
>
>
>
>       public String getProcedure(){
>
>             return procedureName.toString();
>
>       }
>
>
>
> }
>
>
>
> May thanks in advance
>
> Waiting for reply
>
> Nicky Jha
>
>
>
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