org.drools.mvel

Class MVELConstraint

java.lang.Object

org.drools.core.rule.MutableTypeConstraint

org.drools.mvel.MVELConstraint

All Implemented Interfaces:

Externalizable, Serializable, Cloneable, org.drools.core.rule.IndexableConstraint, org.drools.core.spi.Acceptor, org.drools.core.spi.AcceptsReadAccessor, org.drools.core.spi.AlphaNodeFieldConstraint, org.drools.core.spi.BetaNodeFieldConstraint, org.drools.core.spi.Constraint, org.drools.core.spi.RuleComponent

public class MVELConstraint
extends org.drools.core.rule.MutableTypeConstraint
implements org.drools.core.rule.IndexableConstraint, org.drools.core.spi.AcceptsReadAccessor

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	MVELConstraint.EvaluationContext
static class	MVELConstraint.MvelContextEntry
static class	MVELConstraint.UnificationContextEntry

Nested classes/interfaces inherited from interface org.drools.core.spi.Constraint

org.drools.core.spi.Constraint.ConstraintType

Field Summary

Fields

Modifier and Type	Field and Description
protected MVELCompilationUnit	compilationUnit
protected org.drools.core.rule.constraint.ConditionEvaluator	conditionEvaluator
protected String	expression
protected AtomicInteger	invocationCounter
protected boolean	isDynamic
protected boolean	jitted
protected CountDownLatch	mvelOptimized
protected static boolean	TEST_JITTING

Constructor Summary

Constructors

Constructor and Description
MVELConstraint()
MVELConstraint(Collection<String> packageNames, String expression, org.drools.core.rule.Declaration[] declarations, org.drools.core.base.EvaluatorWrapper[] operators, MVELCompilationUnit compilationUnit, org.drools.core.util.index.IndexUtil.ConstraintType constraintType, org.drools.core.spi.TupleValueExtractor indexingDeclaration, org.drools.core.spi.InternalReadAccessor extractor, boolean isUnification)
MVELConstraint(String packageName, String expression, org.drools.core.rule.Declaration[] declarations, org.drools.core.base.EvaluatorWrapper[] operators, MVELCompilationUnit compilationUnit, boolean isDynamic)
MVELConstraint(String packageName, String expression, MVELCompilationUnit compilationUnit, org.drools.core.util.index.IndexUtil.ConstraintType constraintType, org.drools.core.spi.FieldValue fieldValue, org.drools.core.spi.InternalReadAccessor extractor, org.drools.core.base.EvaluatorWrapper[] operators)

Method Summary

Modifier and Type	Method and Description
void	addPackageNames(Collection<String> otherPkgs)
MVELConstraint	clone()
MVELConstraint	cloneIfInUse()
org.drools.core.rule.ContextEntry	createContextEntry()
protected org.drools.core.rule.constraint.ConditionEvaluator	createMvelConditionEvaluator(org.drools.core.common.InternalWorkingMemory workingMemory)
boolean	equals(Object object)
boolean	equals(Object object, org.drools.core.impl.InternalKnowledgeBase kbase)
protected boolean	evaluate(org.drools.core.common.InternalFactHandle handle, org.drools.core.common.InternalWorkingMemory workingMemory, org.drools.core.spi.Tuple tuple)
protected org.drools.core.rule.constraint.ConditionEvaluator	forceJitEvaluator(org.drools.core.common.InternalFactHandle handle, org.drools.core.common.InternalWorkingMemory workingMemory, org.drools.core.spi.Tuple tuple)
protected String	getAccessedClass()
org.drools.core.util.index.IndexUtil.ConstraintType	getConstraintType()
String	getExpression()
org.drools.core.spi.FieldValue	getField()
org.drools.core.spi.InternalReadAccessor	getFieldExtractor()
org.drools.core.util.AbstractHashTable.FieldIndex	getFieldIndex()
org.drools.core.spi.TupleValueExtractor	getIndexExtractor()
org.drools.core.util.bitmask.BitMask	getListenedPropertyMask(Class modifiedClass, List<String> settableProperties)
protected MVELDialectRuntimeData	getMVELDialectRuntimeData(org.drools.core.impl.InternalKnowledgeBase kbase)
protected MVELDialectRuntimeData	getMVELDialectRuntimeData(org.drools.core.common.InternalWorkingMemory workingMemory)
org.drools.core.base.EvaluatorWrapper[]	getOperators()
Collection<String>	getPackageNames()
protected org.mvel2.ParserConfiguration	getParserConfiguration(org.drools.core.common.InternalWorkingMemory workingMemory)
org.drools.core.rule.Declaration[]	getRequiredDeclarations()
int	hashCode()
boolean	isAllowed(org.drools.core.common.InternalFactHandle handle, org.drools.core.common.InternalWorkingMemory workingMemory)
boolean	isAllowedCachedLeft(org.drools.core.rule.ContextEntry context, org.drools.core.common.InternalFactHandle handle)
boolean	isAllowedCachedRight(org.drools.core.spi.Tuple tuple, org.drools.core.rule.ContextEntry context)
boolean	isDynamic()
boolean	isIndexable(short nodeType, org.drools.core.RuleBaseConfiguration config)
boolean	isTemporal()
boolean	isUnification()
protected void	jitEvaluator(org.drools.core.common.InternalFactHandle handle, org.drools.core.common.InternalWorkingMemory workingMemory, org.drools.core.spi.Tuple tuple)
void	readExternal(ObjectInput in)
void	registerEvaluationContext(org.drools.core.reteoo.builder.BuildContext buildContext)
void	replaceDeclaration(org.drools.core.rule.Declaration oldDecl, org.drools.core.rule.Declaration newDecl)
void	setReadAccessor(org.drools.core.spi.InternalReadAccessor readAccessor)
String	toString()
void	unsetUnification()
void	writeExternal(ObjectOutput out)

Methods inherited from class org.drools.core.rule.MutableTypeConstraint

getType, setInUse, setType

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.drools.core.spi.Constraint

getType

Field Detail

TEST_JITTING

protected static final boolean TEST_JITTING

See Also:

Constant Field Values

invocationCounter

protected final transient AtomicInteger invocationCounter

jitted

protected transient volatile boolean jitted

mvelOptimized

protected transient CountDownLatch mvelOptimized

expression

protected String expression

isDynamic

protected boolean isDynamic

compilationUnit

protected MVELCompilationUnit compilationUnit

conditionEvaluator

protected transient volatile org.drools.core.rule.constraint.ConditionEvaluator conditionEvaluator

Constructor Detail

MVELConstraint

public MVELConstraint()

MVELConstraint

public MVELConstraint(String packageName,
                      String expression,
                      MVELCompilationUnit compilationUnit,
                      org.drools.core.util.index.IndexUtil.ConstraintType constraintType,
                      org.drools.core.spi.FieldValue fieldValue,
                      org.drools.core.spi.InternalReadAccessor extractor,
                      org.drools.core.base.EvaluatorWrapper[] operators)

MVELConstraint

public MVELConstraint(String packageName,
                      String expression,
                      org.drools.core.rule.Declaration[] declarations,
                      org.drools.core.base.EvaluatorWrapper[] operators,
                      MVELCompilationUnit compilationUnit,
                      boolean isDynamic)

MVELConstraint

public MVELConstraint(Collection<String> packageNames,
                      String expression,
                      org.drools.core.rule.Declaration[] declarations,
                      org.drools.core.base.EvaluatorWrapper[] operators,
                      MVELCompilationUnit compilationUnit,
                      org.drools.core.util.index.IndexUtil.ConstraintType constraintType,
                      org.drools.core.spi.TupleValueExtractor indexingDeclaration,
                      org.drools.core.spi.InternalReadAccessor extractor,
                      boolean isUnification)

Method Detail

getAccessedClass

protected String getAccessedClass()

setReadAccessor

public void setReadAccessor(org.drools.core.spi.InternalReadAccessor readAccessor)

Specified by:

setReadAccessor in interface org.drools.core.spi.AcceptsReadAccessor

getPackageNames

public Collection<String> getPackageNames()

Specified by:

getPackageNames in interface org.drools.core.spi.Constraint

addPackageNames

public void addPackageNames(Collection<String> otherPkgs)

Specified by:

addPackageNames in interface org.drools.core.spi.Constraint

getExpression

public String getExpression()

isDynamic

public boolean isDynamic()

isUnification

public boolean isUnification()

Specified by:

isUnification in interface org.drools.core.rule.IndexableConstraint

unsetUnification

public void unsetUnification()

Specified by:

unsetUnification in interface org.drools.core.rule.IndexableConstraint

isIndexable

public boolean isIndexable(short nodeType,
                           org.drools.core.RuleBaseConfiguration config)

Specified by:

isIndexable in interface org.drools.core.rule.IndexableConstraint

getConstraintType

public org.drools.core.util.index.IndexUtil.ConstraintType getConstraintType()

Specified by:

getConstraintType in interface org.drools.core.rule.IndexableConstraint

getField

public org.drools.core.spi.FieldValue getField()

Specified by:

getField in interface org.drools.core.rule.IndexableConstraint

isAllowed

public boolean isAllowed(org.drools.core.common.InternalFactHandle handle,
                         org.drools.core.common.InternalWorkingMemory workingMemory)

Specified by:

isAllowed in interface org.drools.core.spi.AlphaNodeFieldConstraint

isAllowedCachedLeft

public boolean isAllowedCachedLeft(org.drools.core.rule.ContextEntry context,
                                   org.drools.core.common.InternalFactHandle handle)

Specified by:

isAllowedCachedLeft in interface org.drools.core.spi.BetaNodeFieldConstraint

isAllowedCachedRight

public boolean isAllowedCachedRight(org.drools.core.spi.Tuple tuple,
                                    org.drools.core.rule.ContextEntry context)

Specified by:

isAllowedCachedRight in interface org.drools.core.spi.BetaNodeFieldConstraint

evaluate

protected boolean evaluate(org.drools.core.common.InternalFactHandle handle,
                           org.drools.core.common.InternalWorkingMemory workingMemory,
                           org.drools.core.spi.Tuple tuple)

createMvelConditionEvaluator

protected org.drools.core.rule.constraint.ConditionEvaluator createMvelConditionEvaluator(org.drools.core.common.InternalWorkingMemory workingMemory)

forceJitEvaluator

protected org.drools.core.rule.constraint.ConditionEvaluator forceJitEvaluator(org.drools.core.common.InternalFactHandle handle,
                                                                               org.drools.core.common.InternalWorkingMemory workingMemory,
                                                                               org.drools.core.spi.Tuple tuple)

jitEvaluator

protected void jitEvaluator(org.drools.core.common.InternalFactHandle handle,
                            org.drools.core.common.InternalWorkingMemory workingMemory,
                            org.drools.core.spi.Tuple tuple)

createContextEntry

public org.drools.core.rule.ContextEntry createContextEntry()

Specified by:

createContextEntry in interface org.drools.core.spi.BetaNodeFieldConstraint

getFieldIndex

public org.drools.core.util.AbstractHashTable.FieldIndex getFieldIndex()

Specified by:

getFieldIndex in interface org.drools.core.rule.IndexableConstraint

getFieldExtractor

public org.drools.core.spi.InternalReadAccessor getFieldExtractor()

Specified by:

getFieldExtractor in interface org.drools.core.rule.IndexableConstraint

getIndexExtractor

public org.drools.core.spi.TupleValueExtractor getIndexExtractor()

Specified by:

getIndexExtractor in interface org.drools.core.rule.IndexableConstraint

getRequiredDeclarations

public org.drools.core.rule.Declaration[] getRequiredDeclarations()

Specified by:

getRequiredDeclarations in interface org.drools.core.spi.Constraint

getOperators

public org.drools.core.base.EvaluatorWrapper[] getOperators()

replaceDeclaration

public void replaceDeclaration(org.drools.core.rule.Declaration oldDecl,
                               org.drools.core.rule.Declaration newDecl)

Specified by:

replaceDeclaration in interface org.drools.core.spi.Constraint

getListenedPropertyMask

public org.drools.core.util.bitmask.BitMask getListenedPropertyMask(Class modifiedClass,
                                                                    List<String> settableProperties)

Specified by:

getListenedPropertyMask in interface org.drools.core.spi.Constraint

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Overrides:

writeExternal in class org.drools.core.rule.MutableTypeConstraint

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Overrides:

readExternal in class org.drools.core.rule.MutableTypeConstraint

Throws:

IOException

ClassNotFoundException

isTemporal

public boolean isTemporal()

Specified by:

isTemporal in interface org.drools.core.spi.Constraint

cloneIfInUse

public MVELConstraint cloneIfInUse()

Specified by:

cloneIfInUse in interface org.drools.core.spi.AlphaNodeFieldConstraint

Specified by:

cloneIfInUse in interface org.drools.core.spi.BetaNodeFieldConstraint

Overrides:

cloneIfInUse in class org.drools.core.rule.MutableTypeConstraint

clone

public MVELConstraint clone()

Specified by:

clone in interface org.drools.core.spi.Constraint

Overrides:

clone in class org.drools.core.rule.MutableTypeConstraint

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object object)

Overrides:

equals in class Object

equals

public boolean equals(Object object,
                      org.drools.core.impl.InternalKnowledgeBase kbase)

Specified by:

equals in interface org.drools.core.spi.Constraint

toString

public String toString()

Overrides:

toString in class Object

getParserConfiguration

protected org.mvel2.ParserConfiguration getParserConfiguration(org.drools.core.common.InternalWorkingMemory workingMemory)

getMVELDialectRuntimeData

protected MVELDialectRuntimeData getMVELDialectRuntimeData(org.drools.core.common.InternalWorkingMemory workingMemory)

getMVELDialectRuntimeData

protected MVELDialectRuntimeData getMVELDialectRuntimeData(org.drools.core.impl.InternalKnowledgeBase kbase)

registerEvaluationContext

public void registerEvaluationContext(org.drools.core.reteoo.builder.BuildContext buildContext)

Specified by:

registerEvaluationContext in interface org.drools.core.spi.Constraint