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

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.UnaryExpr
All Implemented Interfaces:
antlr.collections.AST, java.io.Serializable, java.lang.Cloneable, Expression, Node, UnaryExpression
Direct Known Subclasses:
ComplementExpr, NotExpr, UnaryMinusExpr, UnaryPlusExpr

public abstract class UnaryExpr
extends Expr
implements UnaryExpression

This node represents a unary operator. All unary operators have exactly one children. Examples of binary operators are ComplementExpression and NotExpression.

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
UnaryExpr()
          The noarg constructor is needed for ANTLR support and deserialization.
 
Method Summary
 Expression getExpression()
          Returns the node's expression.
 
Methods inherited from class org.apache.jdo.impl.jdoql.tree.NodeImpl
arrive, clone, getChildren, getJavaClass, getObject, getParent, getTokenType, leave, 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.Node
arrive, getChildren, getJavaClass, getObject, getParent, getTokenType, leave, setObject, setParent, walkNextChild
 

Constructor Detail

UnaryExpr

public UnaryExpr()
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.

Method Detail

getExpression

public Expression getExpression()
Returns the node's expression.

Specified by:
getExpression in interface UnaryExpression
Returns:
the node's expression


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