Package jadex.rules.rulesystem.rete.extractors

Class JavaMethodExtractor

java.lang.Object

jadex.rules.rulesystem.rete.extractors.JavaMethodExtractor

All Implemented Interfaces:

IValueExtractor

public class JavaMethodExtractor
extends java.lang.Object
implements IValueExtractor

Call a method on an object.

Field Summary

Fields

Modifier and Type	Field	Description
protected MethodCall	methodcall	The method call descriptor.
protected IValueExtractor	objex	The object extractor.
protected IValueExtractor[]	parameters	The parameter extractors.

Constructor Summary

Constructors

Constructor	Description
JavaMethodExtractor(IValueExtractor objex, MethodCall methodcall, IValueExtractor[] parameters)	Create a new method extractor

Method Summary

Modifier and Type	Method	Description
AttributeSet	getIndirectAttributes()	Get the set of indirect attribute types.
AttributeSet	getRelevantAttributes()	Get the set of relevant attribute types.
java.lang.Object	getValue(Tuple left, java.lang.Object right, java.lang.Object prefix, IOAVState state)	Get the value of an attribute from an object or tuple.
boolean	isAffected(int tupleindex, OAVAttributeType attr)	Test if a constraint evaluator is affected from a change of a certain attribute.
java.lang.String	toString()	Get the string representation.

Methods inherited from class java.lang.Object

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

Field Detail

objex

protected IValueExtractor objex

The object extractor.

methodcall

protected MethodCall methodcall

The method call descriptor.

parameters

protected IValueExtractor[] parameters

The parameter extractors.

Constructor Detail

JavaMethodExtractor

public JavaMethodExtractor(IValueExtractor objex,
                           MethodCall methodcall,
                           IValueExtractor[] parameters)

Create a new method extractor

Method Detail

getValue

public java.lang.Object getValue(Tuple left,
                                 java.lang.Object right,
                                 java.lang.Object prefix,
                                 IOAVState state)

Get the value of an attribute from an object or tuple.

Specified by:

getValue in interface IValueExtractor

Parameters:

left - The left input tuple.

right - The right input object.

prefix - The prefix input object (last value from previous extractor in a chain).

state - The working memory.

isAffected

public boolean isAffected(int tupleindex,
                          OAVAttributeType attr)

Test if a constraint evaluator is affected from a change of a certain attribute.

Specified by:

isAffected in interface IValueExtractor

Parameters:

tupleindex - The tuple index (-1 for object).

attr - The attribute.

Returns:

True, if affected.

getRelevantAttributes

public AttributeSet getRelevantAttributes()

Get the set of relevant attribute types.

Specified by:

getRelevantAttributes in interface IValueExtractor

Returns:

The relevant attribute types.

getIndirectAttributes

public AttributeSet getIndirectAttributes()

Get the set of indirect attribute types. I.e. attributes of objects, which are not part of an object conditions (e.g. for chained extractors)

Specified by:

getIndirectAttributes in interface IValueExtractor

Returns:

The relevant attribute types.

toString

public java.lang.String toString()

Get the string representation.

Overrides:

toString in class java.lang.Object

Returns:

The string representation.