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

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.ConstantExpr
                          extended by org.apache.jdo.impl.jdoql.tree.DoubleLiteralExpr
All Implemented Interfaces:
antlr.collections.AST, java.io.Serializable, java.lang.Cloneable, ConstantExpression, DoubleLiteralExpression, Expression, Node

public final class DoubleLiteralExpr
extends ConstantExpr
implements DoubleLiteralExpression

This node represents a double literal. It does not have any children.

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
DoubleLiteralExpr()
          The noarg constructor is needed for ANTLR support and deserialization.
DoubleLiteralExpr(antlr.Token token)
          The noarg constructor is needed for ANTLR support.
 
Method Summary
 void arrive(NodeVisitor visitor)
          Delegates to the argument visitor.
 double getDouble()
          Returns the double value represented by this expression.
 java.lang.Object leave(NodeVisitor visitor, java.lang.Object[] results)
          Delegates to the argument visitor.
 
Methods inherited from class org.apache.jdo.impl.jdoql.tree.ConstantExpr
getValue, newConstant
 
Methods inherited from class org.apache.jdo.impl.jdoql.tree.NodeImpl
clone, getChildren, getJavaClass, getObject, getParent, getTokenType, setObject, setParent, toString, walkNextChild
 
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.ConstantExpression
getValue
 
Methods inherited from interface org.apache.jdo.jdoql.tree.Node
getChildren, getJavaClass, getObject, getParent, getTokenType, setObject, setParent, walkNextChild
 

Constructor Detail

DoubleLiteralExpr

public DoubleLiteralExpr()
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.


DoubleLiteralExpr

public DoubleLiteralExpr(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

getDouble

public double getDouble()
Returns the double value represented by this expression.

Specified by:
getDouble in interface DoubleLiteralExpression
Returns:
the double value

arrive

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

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


Copyright © 2005-2011 Apache Software Foundation. All Rights Reserved.