Package org.drools.core.rule

Class LogicTransformer

java.lang.Object

org.drools.core.rule.LogicTransformer

public class LogicTransformer
extends java.lang.Object

LogicTransformation is reponsible for removing redundant nodes and move Or nodes upwards.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	LogicTransformer.NotOrTransformation	(Not (OR (A B) )

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	LogicTransformer()

Method Summary

Modifier and Type	Method	Description
void	applyOrTransformation(GroupElement parent)
protected void	fixClonedDeclarations(GroupElement and, java.util.Map<java.lang.String,java.lang.reflect.Type> globals)	During the logic transformation, we eventually clone CEs, specially patterns and corresponding declarations.
static LogicTransformer	getInstance()
protected boolean	processTree(GroupElement ce)
protected GroupElement[]	splitOr(GroupElement cloned)
static int[]	toIntArray(java.util.List<java.lang.Integer> list)
GroupElement[]	transform(GroupElement cloned, java.util.Map<java.lang.String,java.lang.reflect.Type> globals)

Methods inherited from class java.lang.Object

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

Constructor Detail

LogicTransformer

protected LogicTransformer()

Method Detail

getInstance

public static LogicTransformer getInstance()

transform

public GroupElement[] transform(GroupElement cloned,
                                java.util.Map<java.lang.String,java.lang.reflect.Type> globals)
                         throws InvalidPatternException

Throws:

InvalidPatternException

splitOr

protected GroupElement[] splitOr(GroupElement cloned)

fixClonedDeclarations

protected void fixClonedDeclarations(GroupElement and,
                                     java.util.Map<java.lang.String,java.lang.reflect.Type> globals)

During the logic transformation, we eventually clone CEs, specially patterns and corresponding declarations. So now we need to fix any references to cloned declarations.

toIntArray

public static int[] toIntArray(java.util.List<java.lang.Integer> list)

processTree

protected boolean processTree(GroupElement ce)
                       throws InvalidPatternException

Throws:

InvalidPatternException

applyOrTransformation

public void applyOrTransformation(GroupElement parent)
                           throws InvalidPatternException

Throws:

InvalidPatternException