org.apache.jdo.impl.jdoql.tree

Class UnaryExpr

java.lang.Object

antlr.BaseAST

antlr.CommonAST

org.apache.jdo.impl.jdoql.jdoqlc.JDOQLAST

org.apache.jdo.impl.jdoql.tree.NodeImpl

org.apache.jdo.impl.jdoql.tree.Expr

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

Constructors

Constructor and Description
UnaryExpr() The noarg constructor is needed for ANTLR support and deserialization.

Method Summary

Methods

Modifier and Type	Method and Description
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