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From simonetrip...@apache.org
Subject svn commit: r1102402 [2/20] - in /commons/sandbox/digester3/trunk/src: main/java/org/apache/commons/digester3/ main/java/org/apache/commons/digester3/annotations/ main/java/org/apache/commons/digester3/annotations/handlers/ main/java/org/apache/commons...
Date Thu, 12 May 2011 18:03:33 GMT
Modified: commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/CallParamRule.java
URL: http://svn.apache.org/viewvc/commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/CallParamRule.java?rev=1102402&r1=1102401&r2=1102402&view=diff
==============================================================================
--- commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/CallParamRule.java
(original)
+++ commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/CallParamRule.java
Thu May 12 18:03:26 2011
@@ -16,201 +16,202 @@
  * limitations under the License.
  */
 
-
 package org.apache.commons.digester3;
 
-
 import java.util.Stack;
 
 import org.xml.sax.Attributes;
 
-
 /**
- * <p>Rule implementation that saves a parameter for use by a surrounding 
- * <code>CallMethodRule<code>.</p>
- *
- * <p>This parameter may be:
+ * <p>
+ * Rule implementation that saves a parameter for use by a surrounding <code>CallMethodRule<code>.
+ * </p>
+ * <p>
+ * This parameter may be:
  * <ul>
- * <li>from an attribute of the current element
- * See {@link #CallParamRule(int paramIndex, String attributeName)}
- * <li>from current the element body
- * See {@link #CallParamRule(int paramIndex)}
- * <li>from the top object on the stack. 
- * See {@link #CallParamRule(int paramIndex, boolean fromStack)}
- * <li>the current path being processed (separate <code>Rule</code>). 
- * See {@link PathCallParamRule}
+ * <li>from an attribute of the current element See {@link #CallParamRule(int paramIndex,
String attributeName)}
+ * <li>from current the element body See {@link #CallParamRule(int paramIndex)}
+ * <li>from the top object on the stack. See {@link #CallParamRule(int paramIndex,
boolean fromStack)}
+ * <li>the current path being processed (separate <code>Rule</code>). See
{@link PathCallParamRule}
  * </ul>
  * </p>
  */
 
-public class CallParamRule extends Rule {
+public class CallParamRule
+    extends Rule
+{
 
     // ----------------------------------------------------------- Constructors
 
     /**
-     * Construct a "call parameter" rule that will save the body text of this
-     * element as the parameter value.
-     *
-     * <p>Note that if the element is empty the an <i>empty string</i>
is 
-     * passed to the target method, not null. And if automatic type conversion
-     * is being applied (ie if the target function takes something other than 
-     * a string as a parameter) then the conversion will fail if the converter
-     * class does not accept an empty string as valid input.</p>
-     *
+     * Construct a "call parameter" rule that will save the body text of this element as
the parameter value.
+     * <p>
+     * Note that if the element is empty the an <i>empty string</i> is passed
to the target method, not null. And if
+     * automatic type conversion is being applied (ie if the target function takes something
other than a string as a
+     * parameter) then the conversion will fail if the converter class does not accept an
empty string as valid input.
+     * </p>
+     * 
      * @param paramIndex The zero-relative parameter number
      */
-    public CallParamRule(int paramIndex) {
+    public CallParamRule( int paramIndex )
+    {
 
-        this(paramIndex, null);
+        this( paramIndex, null );
 
     }
 
-
     /**
-     * Construct a "call parameter" rule that will save the value of the
-     * specified attribute as the parameter value.
-     *
+     * Construct a "call parameter" rule that will save the value of the specified attribute
as the parameter value.
+     * 
      * @param paramIndex The zero-relative parameter number
      * @param attributeName The name of the attribute to save
      */
-    public CallParamRule(int paramIndex,
-                         String attributeName) {
+    public CallParamRule( int paramIndex, String attributeName )
+    {
 
         this.paramIndex = paramIndex;
         this.attributeName = attributeName;
 
     }
 
-
     /**
      * Construct a "call parameter" rule.
-     *
+     * 
      * @param paramIndex The zero-relative parameter number
      * @param fromStack should this parameter be taken from the top of the stack?
-     */    
-    public CallParamRule(int paramIndex, boolean fromStack) {
-    
-        this.paramIndex = paramIndex;  
+     */
+    public CallParamRule( int paramIndex, boolean fromStack )
+    {
+
+        this.paramIndex = paramIndex;
         this.fromStack = fromStack;
 
     }
-    
+
     /**
-     * Constructs a "call parameter" rule which sets a parameter from the stack.
-     * If the stack contains too few objects, then the parameter will be set to null.
-     *
+     * Constructs a "call parameter" rule which sets a parameter from the stack. If the stack
contains too few objects,
+     * then the parameter will be set to null.
+     * 
      * @param paramIndex The zero-relative parameter number
-     * @param stackIndex the index of the object which will be passed as a parameter. 
-     * The zeroth object is the top of the stack, 1 is the next object down and so on.
-     */    
-    public CallParamRule(int paramIndex, int stackIndex) {
-    
-        this.paramIndex = paramIndex;  
+     * @param stackIndex the index of the object which will be passed as a parameter. The
zeroth object is the top of
+     *            the stack, 1 is the next object down and so on.
+     */
+    public CallParamRule( int paramIndex, int stackIndex )
+    {
+
+        this.paramIndex = paramIndex;
         this.fromStack = true;
         this.stackIndex = stackIndex;
     }
- 
-    // ----------------------------------------------------- Instance Variables
 
+    // ----------------------------------------------------- Instance Variables
 
     /**
      * The attribute from which to save the parameter value
      */
     protected String attributeName = null;
 
-
     /**
      * The zero-relative index of the parameter we are saving.
      */
     protected int paramIndex = 0;
 
-
     /**
      * Is the parameter to be set from the stack?
      */
     protected boolean fromStack = false;
-    
+
     /**
      * The position of the object from the top of the stack
      */
     protected int stackIndex = 0;
 
-    /** 
-     * Stack is used to allow nested body text to be processed.
-     * Lazy creation.
+    /**
+     * Stack is used to allow nested body text to be processed. Lazy creation.
      */
     protected Stack<String> bodyTextStack;
 
     // --------------------------------------------------------- Public Methods
 
-
     /**
      * Process the start of this element.
-     *
+     * 
      * @param attributes The attribute list for this element
      */
     @Override
-    public void begin(String namespace, String name, Attributes attributes) throws Exception
{
+    public void begin( String namespace, String name, Attributes attributes )
+        throws Exception
+    {
 
         Object param = null;
-        
-        if (attributeName != null) {
-        
-            param = attributes.getValue(attributeName);
-            
-        } else if(fromStack) {
-        
-            param = getDigester().peek(stackIndex);
-            
-            if (getDigester().getLogger().isDebugEnabled()) {
-            
-                StringBuilder sb = new StringBuilder("[CallParamRule]{");
-                sb.append(getDigester().getMatch());
-                sb.append("} Save from stack; from stack?").append(fromStack);
-                sb.append("; object=").append(param);
-                getDigester().getLogger().debug(sb.toString());
-            }   
+
+        if ( attributeName != null )
+        {
+
+            param = attributes.getValue( attributeName );
+
+        }
+        else if ( fromStack )
+        {
+
+            param = getDigester().peek( stackIndex );
+
+            if ( getDigester().getLogger().isDebugEnabled() )
+            {
+
+                StringBuilder sb = new StringBuilder( "[CallParamRule]{" );
+                sb.append( getDigester().getMatch() );
+                sb.append( "} Save from stack; from stack?" ).append( fromStack );
+                sb.append( "; object=" ).append( param );
+                getDigester().getLogger().debug( sb.toString() );
+            }
         }
-        
+
         // Have to save the param object to the param stack frame here.
         // Can't wait until end(). Otherwise, the object will be lost.
-        // We can't save the object as instance variables, as 
+        // We can't save the object as instance variables, as
         // the instance variables will be overwritten
         // if this CallParamRule is reused in subsequent nesting.
-        
-        if(param != null) {
+
+        if ( param != null )
+        {
             Object parameters[] = getDigester().peekParams();
             parameters[paramIndex] = param;
         }
     }
 
-
     /**
      * Process the body text of this element.
-     *
+     * 
      * @param bodyText The body text of this element
      */
     @Override
-    public void body(String namespace, String name, String text) throws Exception {
+    public void body( String namespace, String name, String text )
+        throws Exception
+    {
 
-        if (attributeName == null && !fromStack) {
+        if ( attributeName == null && !fromStack )
+        {
             // We must wait to set the parameter until end
             // so that we can make sure that the right set of parameters
             // is at the top of the stack
-            if (bodyTextStack == null) {
+            if ( bodyTextStack == null )
+            {
                 bodyTextStack = new Stack<String>();
             }
-            bodyTextStack.push(text.trim());
+            bodyTextStack.push( text.trim() );
         }
 
     }
-    
+
     /**
      * Process any body texts now.
      */
     @Override
-    public void end(String namespace, String name) {
-        if (bodyTextStack != null && !bodyTextStack.empty()) {
+    public void end( String namespace, String name )
+    {
+        if ( bodyTextStack != null && !bodyTextStack.empty() )
+        {
             // what we do now is push one parameter onto the top set of parameters
             Object parameters[] = getDigester().peekParams();
             parameters[paramIndex] = bodyTextStack.pop();
@@ -221,19 +222,19 @@ public class CallParamRule extends Rule 
      * Render a printable version of this Rule.
      */
     @Override
-    public String toString() {
+    public String toString()
+    {
 
-        StringBuilder sb = new StringBuilder("CallParamRule[");
-        sb.append("paramIndex=");
-        sb.append(paramIndex);
-        sb.append(", attributeName=");
-        sb.append(attributeName);
-        sb.append(", from stack=");
-        sb.append(fromStack);
-        sb.append("]");
-        return (sb.toString());
+        StringBuilder sb = new StringBuilder( "CallParamRule[" );
+        sb.append( "paramIndex=" );
+        sb.append( paramIndex );
+        sb.append( ", attributeName=" );
+        sb.append( attributeName );
+        sb.append( ", from stack=" );
+        sb.append( fromStack );
+        sb.append( "]" );
+        return ( sb.toString() );
 
     }
 
-
 }



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