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java.lang.Objectcom.bea.p13n.expression.internal.ComplexExpressionImpl
com.bea.p13n.expression.operator.Operator
com.bea.p13n.expression.operator.comparative.ComparativeOperator
com.bea.p13n.expression.operator.comparative.Equals
Implementation of the Equals operator.
Input 1: An Object (or Expression returning an Object) that is LHS of the operator.
Input 2: An Object (or Expression returning an Object) that is RHS of the operator.
Returns: A Boolean(true) if the LHS == RHS, otherwise Boolen(false).
Field Summary |
Fields inherited from interface com.bea.p13n.expression.operator.BinaryOperator |
LHS_INDEX, RHS_INDEX |
Constructor Summary | |
Equals()
Constructs an empty operator and operands can be added later by calling addSubExpression() on this. |
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Equals(Object lhs,
Object rhs)
Constructs equals operator by storing the given parameters as operands of this. |
Method Summary | |
Class[] |
getParameterSignature()
Returns the parameter signature for this Expression .
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Methods inherited from class com.bea.p13n.expression.operator.comparative.ComparativeOperator |
getLeftHandSide, getRightHandSide |
Methods inherited from class com.bea.p13n.expression.operator.Operator |
leftHandSide, operand, rightHandSide |
Methods inherited from class com.bea.p13n.expression.internal.ComplexExpressionImpl |
addListener, addSubExpression, clearCache, clone, createProxyExpression, equals, getCachedValue, 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 |
public Equals()
public Equals(Object lhs, Object rhs)
Method Detail |
public Class[] getParameterSignature()
Expression
Expression
.
Because the sub-expressions within the Expression
are
typically arguments or operands, some type validation is performed
by examining the class types of the sub-expressions against the
Expression
's parameter signature.
getParameterSignature
in interface Expression
getParameterSignature
in class ComparativeOperator
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