org.apache.jdo.impl.jdoql.tree
Class OrExpr

java.lang.Object
  extended by antlr.BaseAST
      extended by antlr.CommonAST
          extended by org.apache.jdo.impl.jdoql.jdoqlc.JDOQLAST
              extended by org.apache.jdo.impl.jdoql.tree.NodeImpl
                  extended by org.apache.jdo.impl.jdoql.tree.Expr
                      extended by org.apache.jdo.impl.jdoql.tree.BinaryExpr
                          extended by org.apache.jdo.impl.jdoql.tree.OrExpr
All Implemented Interfaces:
antlr.collections.AST, java.io.Serializable, java.lang.Cloneable, BinaryExpression, Expression, Node, OrExpression

public final class OrExpr
extends BinaryExpr
implements OrExpression

This node represents a logical or operator. A logical operator is based on boolean types. The string representation of this operator is |.

Author:
Michael Watzek
See Also:
Serialized Form

Field Summary
 
Fields inherited from class org.apache.jdo.impl.jdoql.jdoqlc.JDOQLAST
column, line, typeInfo
 
Fields inherited from class antlr.BaseAST
down, right
 
Constructor Summary
OrExpr()
          The noarg constructor is needed for ANTLR support and deserialization.
OrExpr(antlr.Token token)
          The noarg constructor is needed for ANTLR support.
 
Method Summary
 void arrive(NodeVisitor visitor)
          Delegates to the argument visitor.
 java.lang.Object leave(NodeVisitor visitor, java.lang.Object[] results)
          Delegates to the argument visitor.
 boolean walkNextChild(NodeVisitor visitor, java.lang.Object resultOfPreviousChild, int indexOfNextChild)
          Delegates to the argument visitor.
 
Methods inherited from class org.apache.jdo.impl.jdoql.tree.BinaryExpr
getCommonOperandType, getLeftExpression, getRightExpression, setCommonOperandType
 
Methods inherited from class org.apache.jdo.impl.jdoql.tree.NodeImpl
clone, getChildren, getJavaClass, getObject, getParent, getTokenType, setObject, setParent, toString
 
Methods inherited from class org.apache.jdo.impl.jdoql.jdoqlc.JDOQLAST
getColumn, getLine, getTypeInfo, initialize, initialize, initialize, setColumn, setLine, setTypeInfo, treeToString
 
Methods inherited from class antlr.CommonAST
getText, getType, initialize, setText, setType
 
Methods inherited from class antlr.BaseAST
addChild, decode, encode, equals, equalsList, equalsListPartial, equalsTree, equalsTreePartial, findAll, findAllPartial, getFirstChild, getNextSibling, getNumberOfChildren, getTokenNames, removeChildren, setFirstChild, setNextSibling, setVerboseStringConversion, toStringList, toStringTree, xmlSerialize, xmlSerializeNode, xmlSerializeRootClose, xmlSerializeRootOpen
 
Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface org.apache.jdo.jdoql.tree.BinaryExpression
getCommonOperandType, getLeftExpression, getRightExpression
 
Methods inherited from interface org.apache.jdo.jdoql.tree.Node
getChildren, getJavaClass, getObject, getParent, getTokenType, setObject, setParent
 

Constructor Detail

OrExpr

public OrExpr()
The noarg constructor is needed for ANTLR support and deserialization. The caller must make sure to set the ANTLR tree structure himself or, call setChildren optionally.


OrExpr

public OrExpr(antlr.Token token)
The noarg constructor is needed for ANTLR support. The caller must make sure to set the ANTLR tree structure himself or, call setChildren optionally.

Method Detail

arrive

public void arrive(NodeVisitor visitor)
Delegates to the argument visitor.

Specified by:
arrive in interface Node
Overrides:
arrive in class NodeImpl
Parameters:
visitor - the node visitor

leave

public java.lang.Object leave(NodeVisitor visitor,
                              java.lang.Object[] results)
Delegates to the argument visitor.

Specified by:
leave in interface Node
Overrides:
leave in class NodeImpl
Parameters:
visitor - the node visitor
results - the result array
Returns:
the object returned by the visitor instance

walkNextChild

public boolean walkNextChild(NodeVisitor visitor,
                             java.lang.Object resultOfPreviousChild,
                             int indexOfNextChild)
Delegates to the argument visitor.

Specified by:
walkNextChild in interface Node
Overrides:
walkNextChild in class NodeImpl
Parameters:
visitor - the node visitor
resultOfPreviousChild - the result computed by leaving the previous child node
indexOfNextChild - the index in the children array of the next child to walk
Returns:
the boolean value returned by the visitor instance


Copyright © 2005-2008 Apache Software Foundation. All Rights Reserved.