org.jboss.byteman.agent
Class Location.VariableAccessLocation

java.lang.Object
  org.jboss.byteman.agent.Location
      org.jboss.byteman.agent.Location.AccessLocation
          org.jboss.byteman.agent.Location.VariableAccessLocation

Enclosing class:

Location

private static class Location.VariableAccessLocation
extends Location.AccessLocation

location identifying a variable access trigger point

Field Summary

private boolean	isIndex flag which is true if the name is a method parameter index such as $0, $1 etc otherwise false
private java.lang.String	variableName the name of the variable being accessed at the point where the trigger point should be inserted

Fields inherited from class org.jboss.byteman.agent.Location.AccessLocation

count, flags, whenComplete

Fields inherited from class org.jboss.byteman.agent.Location

ACCESS_READ, ACCESS_WRITE

Constructor Summary

protected

Location.VariableAccessLocation(java.lang.String variablename, int count, int flags, boolean whenComplete) construct a location identifying a variable read trigger point

Method Summary

LocationType	getLocationType() identify the type of this location
RuleTriggerAdapter	getRuleAdapter(ClassVisitor cv, TransformContext transformContext) return an adapter which can be used to insert a trigger call in a method containing a trigger point whose position matches this location
RuleCheckAdapter	getRuleCheckAdapter(ClassVisitor cv, TransformContext transformContext) return an adapter which can be used to check whether a method contains a trigger point whose position matches this location
java.lang.String	toString()

Methods inherited from class org.jboss.byteman.agent.Location.AccessLocation

create

Methods inherited from class org.jboss.byteman.agent.Location

create

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

variableName

private java.lang.String variableName

the name of the variable being accessed at the point where the trigger point should be inserted

isIndex

private boolean isIndex

flag which is true if the name is a method parameter index such as $0, $1 etc otherwise false

Constructor Detail

Location.VariableAccessLocation

protected Location.VariableAccessLocation(java.lang.String variablename,
                                          int count,
                                          int flags,
                                          boolean whenComplete)

construct a location identifying a variable read trigger point

Parameters:

typeName - the name of the class owning the field

variablename - the name of the variable being read

count - count identifying which access should be taken as the trigger point

flags - bit field comprising one or other of flags ACCESS_READ and ACCESS_WRITE identifying whether this specifies field READ or WRITE operations

whenComplete - false if the trigger should be inserted before the access is performed and true if it should be inserted after

Method Detail

getRuleCheckAdapter

public RuleCheckAdapter getRuleCheckAdapter(ClassVisitor cv,
                                            TransformContext transformContext)

return an adapter which can be used to check whether a method contains a trigger point whose position matches this location

Specified by:

getRuleCheckAdapter in class Location

Returns:

the required adapter

getRuleAdapter

public RuleTriggerAdapter getRuleAdapter(ClassVisitor cv,
                                         TransformContext transformContext)

return an adapter which can be used to insert a trigger call in a method containing a trigger point whose position matches this location

Specified by:

getRuleAdapter in class Location

Returns:

the required adapter

getLocationType

public LocationType getLocationType()

Description copied from class: Location

identify the type of this location

Overrides:

getLocationType in class Location.AccessLocation

Returns:

the type of this location

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object