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/* *******************************************************************
* Copyright (c) 2004 IBM Corporation.
* All rights reserved.
* This program and the accompanying materials are made available
* under the terms of the Eclipse Public License v 2.0
* which accompanies this distribution and is available at
* https://www.eclipse.org/org/documents/epl-2.0/EPL-2.0.txt
*
* ******************************************************************/
package org.aspectj.weaver.tools;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Member;
import java.lang.reflect.Method;
/**
* Represents an AspectJ pointcut expression and provides convenience methods to determine
* whether or not the pointcut matches join points specified in terms of the
* java.lang.reflect interfaces.
*/
public interface PointcutExpression {
/**
* Set the matching context to be used for
* subsequent calls to match.
* @see MatchingContext
*/
void setMatchingContext(MatchingContext aMatchContext);
/**
* Determine whether or not this pointcut could ever match a join point in the given class.
* @param aClass the candidate class
* @return true iff this pointcut may match a join point within(aClass), and false otherwise
*/
boolean couldMatchJoinPointsInType(Class aClass);
/**
* Returns true iff this pointcut contains any expression that might necessitate a dynamic test
* at some join point (e.g. args)
*/
boolean mayNeedDynamicTest();
/**
* Determine whether or not this pointcut matches the execution of a given method.
* @param aMethod the method being executed
* @return a ShadowMatch indicating whether the pointcut always, sometimes, or never
* matches join points representing the execution of the method.
*/
ShadowMatch matchesMethodExecution(Method aMethod );
/**
* Determine whether or not this pointcut matches the execution of a given constructor.
* @param aConstructor the constructor being executed
* @return a ShadowMatch indicating whether the pointcut always, sometimes, or never
* matches join points representing the execution of the constructor.
*/
ShadowMatch matchesConstructorExecution(Constructor aConstructor);
/**
* Determine whether or not this pointcut matches the static initialization
* of the given class.
* @param aClass the class being statically initialized
* @return a ShadowMatch indicating whether the pointcut always, sometimes, or never
* matchs join points representing the static initialization of the given type
*/
ShadowMatch matchesStaticInitialization(Class aClass);
/**
* Determine whether or not this pointcut matches the execution of a given piece of advice.
* @param anAdviceMethod a method representing the advice being executed
* @return a ShadowMatch indicating whether the pointcut always, sometimes, or never
* matches join points representing the execution of the advice.
*/
ShadowMatch matchesAdviceExecution(Method anAdviceMethod);
/**
* Determine whether or not this pointcut matches the initialization of an
* object initiated by a call to the given constructor.
* @param aConstructor the constructor initiating the initialization
* @return a ShadowMatch indicating whether the pointcut always, sometimes, or never
* matches join points representing initialization via the given constructor.
*/
ShadowMatch matchesInitialization(Constructor aConstructor);
/**
* Determine whether or not this pointcut matches the pre-initialization of an
* object initiated by a call to the given constructor.
* @param aConstructor the constructor initiating the initialization
* @return a ShadowMatch indicating whether the pointcut always, sometimes, or never
* matches join points representing pre-initialization via the given constructor.
*/
ShadowMatch matchesPreInitialization(Constructor aConstructor);
/**
* Determine whether or not this pointcut matches a method call to the given method, made during
* the execution of the given method or constructor.
* @param aMethod the method being called
* @param withinCode the Method or Constructor from within which the call is made
* @return a ShadowMatch indicating whether the pointcut always, sometimes, or never
* matches join points representing a call to this method during the execution of the given member.
*/
ShadowMatch matchesMethodCall(Method aMethod, Member withinCode);
/**
* Determine whether or not this pointcut matches a method call to the given method, made outside
* of the scope of any method or constructor, but within the callerType (for example, during
* static initialization of the type).
* @param aMethod the method being called
* @param callerType the declared type of the caller
* @return a ShadowMatch indicating whether the pointcut always, sometimes, or never
* matches join points representing a call to this method during the execution of the given member.
*/
ShadowMatch matchesMethodCall(Method aMethod, Class callerType);
/**
* Determine whether or not this pointcut matches a method call to the given constructor, made during
* the execution of the given method or constructor.
* @param aConstructor the constructor being called
* @param withinCode the Method or Constructor from within which the call is made
* @return a ShadowMatch indicating whether the pointcut always, sometimes, or never
* matches join points representing a call to this constructor during the execution of the given member.
*/
ShadowMatch matchesConstructorCall(Constructor aConstructor, Member withinCode);
/**
* Determine whether or not this pointcut matches a method call to the given constructor, made outside
* of the scope of any method or constructor, but within the callerType.
* @param aConstructor the cosstructor being called
* @param callerType the declared type of the caller
* @return a ShadowMatch indicating whether the pointcut always, sometimes, or never
* matches join points representing a call to this constructor during the execution of the given member.
*/
ShadowMatch matchesConstructorCall(Constructor aConstructor, Class callerType);
/**
* Determine whether or not this pointcut matches the execution of a given exception
* handler within the given method or constructor
* @param exceptionType the static type of the exception being handled
* @param withinCode the method or constructor in which the catch block is declared
* @return a ShadowMatch indicating whether the pointcut always, sometimes, or
* never matches join points representing the handling of the given exception
*/
ShadowMatch matchesHandler(Class exceptionType, Member withinCode);
/**
* Determine whether or not this pointcut matches the execution of a given exception
* handler outside of the scope of any method or constructor, but within the handling type.
* @param exceptionType the static type of the exception being handled
* @param handlingType the type in which the handler block is executing
* @return a ShadowMatch indicating whether the pointcut always, sometimes, or
* never matches join points representing the handling of the given exception
*/
ShadowMatch matchesHandler(Class exceptionType, Class handlingType);
/**
* Determine whether or not this pointcut matches a set of the given field from within the given
* method or constructor.
* @param aField the field being updated
* @param withinCode the Method or Constructor owning the call site
* @return a ShadowMatch indicating whether the pointcut always, sometimes, or
* never matches field set join points for the given field and call site.
*/
ShadowMatch matchesFieldSet(Field aField, Member withinCode);
/**
* Determine whether or not this pointcut matches a set of the given field outside of the
* scope of any method or constructor, but within the given type (for example, during
* static initialization).
* @param aField the field being updated
* @param withinType the type owning the call site
* @return a ShadowMatch indicating whether the pointcut always, sometimes, or
* never matches field set join points for the given field and call site.
*/
ShadowMatch matchesFieldSet(Field aField, Class withinType);
/**
* Determine whether or not this pointcut matches a get of the given field from within the given
* method or constructor.
* @param aField the field being updated
* @param withinCode the Method or Constructor owning the call site
* @return a ShadowMatch indicating whether the pointcut always, sometimes, or
* never matches field get join points for the given field and call site.
*/
ShadowMatch matchesFieldGet(Field aField, Member withinCode);
/**
* Determine whether or not this pointcut matches a get of the given field outside of the
* scope of any method or constructor, but within the given type (for example, during
* static initialization).
* @param aField the field being accessed
* @param withinType the type owning the call site
* @return a ShadowMatch indicating whether the pointcut always, sometimes, or
* never matches field get join points for the given field and call site.
*/
ShadowMatch matchesFieldGet(Field aField, Class withinType);
/**
* Return a string representation of this pointcut expression.
*/
String getPointcutExpression();
}
