|
Copyright © 2000, 2008, Oracle and/or its affiliates. All rights reserved. | ||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Object com.bea.p13n.expression.internal.ComplexExpressionImpl com.bea.p13n.expression.operator.Operator com.bea.p13n.expression.operator.ClassNewInstance
public final class ClassNewInstance
Implementation of the ClassNewInstance operator. Returns
an newly constructed object by invoking a specified constructor.
Input 1: A Class object (or expression that evaluates to a Class) that
defines the Class that should be created.
Input 2: A Class[] (or expression that evaluates to a Class[]) that
defines the signature of the constructor that should be invoked. If
input 2 is null the operator will attempt to deduce the constructor
to call from the arguments (input 3).
Input 3: A Object[] (or expression that evaluates to a Object[]) that
contains the arguments that should be passed to the constructor.
Returns: A new instance of the class, instantiated with the
constructor of the provided signature using the supplied arguments..
Field Summary |
---|
Fields inherited from interface com.bea.p13n.expression.ExpressionEvents |
---|
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 | |
---|---|
ClassNewInstance()
Constructs an empty operator and operands can be added later by calling addSubExpression() on this. |
|
ClassNewInstance(Object clazz,
Object constructorSignature,
Object args)
Constructs this with the given clazz , constructorSignature
|
Method Summary | |
---|---|
Class[] |
getParameterSignature()
Returns the parameter signature for this Expression . |
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 ClassNewInstance()
public ClassNewInstance(Object clazz, Object constructorSignature, Object args)
clazz
, constructorSignatureargs
parameters.
clazz
- The Class
whose instance has to be created.constructorSignature
- The parameter signature of a constructor that will
be used to create an instance of clazz
.args
- The arguments to be passed to the constructor.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.
|
Copyright © 2000, 2008, Oracle and/or its affiliates. All rights reserved. | ||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |