org.jboss.ejb.plugins.cmp.ejbql
Class ASTLength

java.lang.Object
  org.jboss.ejb.plugins.cmp.ejbql.SimpleNode
      org.jboss.ejb.plugins.cmp.ejbql.ASTLength

All Implemented Interfaces:

SelectFunction

public final class ASTLength

extends SimpleNode

implements SelectFunction

This abstract syntax node represents a length function.

Version:

$Revision: 1.5 $

Author:

Dain Sundstrom, Alex Loubyansky

Field Summary

Fields inherited from class org.jboss.ejb.plugins.cmp.ejbql.SimpleNode

children, id, parent

Constructor Summary

ASTLength(int id)

Method Summary

Object	jjtAccept(JBossQLParserVisitor visitor, Object data) Accept the visitor.
Object	readResult(ResultSet rs) Reads results.

Methods inherited from class org.jboss.ejb.plugins.cmp.ejbql.SimpleNode

dump, jjtAddChild, jjtClose, jjtGetChild, jjtGetNumChildren, jjtGetParent, jjtOpen, jjtSetParent, toString, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

ASTLength

public ASTLength(int id)

Method Detail

jjtAccept

public Object jjtAccept(JBossQLParserVisitor visitor,
                        Object data)

Accept the visitor.

Overrides:

jjtAccept in class SimpleNode

readResult

public Object readResult(ResultSet rs)
                  throws SQLException

Reads results.

Specified by:

readResult in interface SelectFunction

Parameters:

rs - the result set to read from.

Returns:

the result of the function

Throws:

SQLException