com.bea.p13n.expression.operator
Class Operator

java.lang.Object
  |
  +--com.bea.p13n.expression.internal.ComplexExpressionImpl
        |
        +--com.bea.p13n.expression.operator.Operator

Direct Known Subclasses:

ClassForName, ClassGetName, ClassNewInstance, CollectionOperator, ComparativeOperator, If, Instanceof, LogicalOperator, MathOperator, MethodCall, ObjectGetClass, ObjectHashCode, ObjectToString, PropertyRef, StringOperator, SystemCurrentTimeMillis, SystemGetProperty, Variable

public abstract class Operator

extends com.bea.p13n.expression.internal.ComplexExpressionImpl

Base class for all Operators in the expression package.

See Also:

Serialized Form

Constructor Summary

protected	Operator() A default constructor that can used by multi-operand operators.
protected	Operator(java.lang.Object unaryOperand) A constructor to be used by unary operators.
protected	Operator(java.lang.Object lhs, java.lang.Object rhs) A constructor to be used by binary operators.

Method Summary

protected java.lang.Object	leftHandSide() Returns left hand side operand of a binary operator.
protected java.lang.Object	operand() Returns unary operand of an unary operator.
protected java.lang.Object	rightHandSide() Returns right hand side operand of a binary operator.

Methods inherited from class com.bea.p13n.expression.internal.ComplexExpressionImpl

accept, addListener, addSubExpression, clearCache, clone, createProxyExpression, equals, getCachedValue, getParameterSignature, getParent, getSource, getSubExpression, getSubExpressionCount, getUserData, hashCode, isCached, isCacheEnabled, isEqualitySubExpression, notifyListeners, removeAllSubExpressions, removeListener, removeSubExpression, removeSubExpression, setCachedValue, setCacheEnabled, setParent, setSource, setSubExpression, setUserData, toString, write

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Operator

protected Operator()

A default constructor that can used by multi-operand operators.

Operator

protected Operator(java.lang.Object unaryOperand)

A constructor to be used by unary operators.

Parameters:

unaryOperand - An operand to a unary operator.

Operator

protected Operator(java.lang.Object lhs,
                   java.lang.Object rhs)

A constructor to be used by binary operators.

Parameters:

lhs - The left hand side operand.

rhs - The right hand side operand.

Method Detail

operand

protected java.lang.Object operand()

Returns unary operand of an unary operator.

Returns:

An Object representing an operand of an unary operator.

leftHandSide

protected java.lang.Object leftHandSide()

Returns left hand side operand of a binary operator.

Returns:

An Object representing a left hand side operand of a binary operator.

rightHandSide

protected java.lang.Object rightHandSide()

Returns right hand side operand of a binary operator.

Returns:

An Object representing a right hand side operand of a binary operator.