org.apache.cayenne.access.jdbc
Class ChunkDirective

java.lang.Object
  org.apache.velocity.runtime.directive.Directive
      org.apache.cayenne.access.jdbc.ChunkDirective

All Implemented Interfaces:

java.lang.Cloneable, org.apache.velocity.runtime.directive.DirectiveConstants

public class ChunkDirective
extends org.apache.velocity.runtime.directive.Directive

A custom Velocity directive to describe a conditional chunk of a chain. Usage of chunk is the following:

 #chunk()...#end - e.g. #chunk()A = 5#end
 #chunk(condition)...#end - e.g. #chunk($a)A = $a#end

If condition is evaluated to false, chunk is not included in the chain, if it is true, chunk is included, and if it is not the first chunk, it is prefixed with chain join.

Since:

1.1

Author:

Andrei Adamchik

Field Summary

Fields inherited from class org.apache.velocity.runtime.directive.Directive

rsvc

Fields inherited from interface org.apache.velocity.runtime.directive.DirectiveConstants

BLOCK, LINE

Constructor Summary

ChunkDirective()

Method Summary

java.lang.String	getName()
int	getType()
boolean	render(org.apache.velocity.context.InternalContextAdapter context, java.io.Writer writer, org.apache.velocity.runtime.parser.node.Node node)

Methods inherited from class org.apache.velocity.runtime.directive.Directive

getColumn, getLine, init, setLocation

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ChunkDirective

public ChunkDirective()

Method Detail

getName

public java.lang.String getName()

Specified by:

getName in class org.apache.velocity.runtime.directive.Directive

getType

public int getType()

Specified by:

getType in class org.apache.velocity.runtime.directive.Directive

render

public boolean render(org.apache.velocity.context.InternalContextAdapter context,
                      java.io.Writer writer,
                      org.apache.velocity.runtime.parser.node.Node node)
               throws java.io.IOException,
                      org.apache.velocity.exception.ResourceNotFoundException,
                      org.apache.velocity.exception.ParseErrorException,
                      org.apache.velocity.exception.MethodInvocationException

Specified by:

render in class org.apache.velocity.runtime.directive.Directive

Throws:

java.io.IOException

org.apache.velocity.exception.ResourceNotFoundException

org.apache.velocity.exception.ParseErrorException

org.apache.velocity.exception.MethodInvocationException