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Oracle Fusion Middleware Java API for Oracle WebLogic Portal 10g Release 3 (10.3.2) E14255-01 |
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java.lang.Object
com.bea.p13n.expression.internal.ComplexExpressionImpl
com.bea.p13n.expression.operator.Operator
com.bea.p13n.expression.operator.Instanceof
public final class Instanceof
Implementation of the Instanceof operator. Returns a Boolean if the Object parameter (which can be an expression) is an instance of a class type.
Input 1: An object or Expression returning an object.
Input 2: A Class or an Expression returning a Class
Returns: A Boolean that is the result of testing the object against the Class.
Field Summary |
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Fields inherited from interface com.bea.p13n.expression.operator.BinaryOperator |
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LHS_INDEX, RHS_INDEX |
Fields inherited from interface com.bea.p13n.expression.ExpressionEvents |
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EVENT_ADD_SUBEXPRESSION, EVENT_CLEAR_CACHE, EVENT_INTERNAL_MAX, EVENT_REMOVE_SUBEXPRESSION, EVENT_SET_CACHE_ENABLED, EVENT_SET_CACHED_VALUE, EVENT_SET_PARENT, EVENT_SET_SOURCE, EVENT_SET_SUBEXPRESSION, EVENT_SET_USER_DATA |
Constructor Summary | |
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Instanceof() Constructs an empty operator and operands can be added later by calling addSubExpression() on this. |
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Instanceof(Object obj, Class clazz) Constructs this by associating the given parameters as operands. |
Method Summary | |
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Object |
getLeftHandSide() Returns left hand side operand of this binary operator. |
Class[] |
getParameterSignature() Returns the parameter signature for this Expression . |
Object |
getRightHandSide() Returns right hand side operand of this binary operator. |
Object |
getTargetClass() Returns Class operand of this operator. |
Object |
getTargetObject() Returns Object operand of this operator. |
Methods inherited from class com.bea.p13n.expression.operator.Operator |
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leftHandSide, operand, rightHandSide |
Methods inherited from class com.bea.p13n.expression.internal.ComplexExpressionImpl |
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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 |
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finalize, getClass, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public Instanceof()
public Instanceof(Object obj, Class clazz)
obj
- An Object or Expression returning an object.clazz
- A Class or an Expression returning a Class.Method Detail |
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public Object getTargetObject()
Object
or Expression
that is used as an Object operand of this.public Object getTargetClass()
Class
operand of this.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
public Object getLeftHandSide()
BinaryOperator
getLeftHandSide
in interface BinaryOperator
public Object getRightHandSide()
BinaryOperator
getRightHandSide
in interface BinaryOperator
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Oracle Fusion Middleware Java API for Oracle WebLogic Portal 10g Release 3 (10.3.2) E14255-01 |
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