Package org.drools.core.rule

Class MultiAccumulate

java.lang.Object

org.drools.core.rule.ConditionalElement

org.drools.core.rule.Accumulate

org.drools.core.rule.MultiAccumulate

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable, java.lang.Cloneable, PatternSource, RuleComponent, RuleConditionElement

public class MultiAccumulate
extends Accumulate

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	MultiAccumulate.Wirer

Field Summary

Fields inherited from class org.drools.core.rule.Accumulate

cloned, innerDeclarationCache, requiredDeclarations, source

Constructor Summary

Constructors

Constructor	Description
MultiAccumulate()
MultiAccumulate(RuleConditionElement source, Declaration[] requiredDeclarations, Accumulator[] accumulators, int arraySize)

Method Summary

Modifier and Type	Method	Description
java.lang.Object	accumulate(java.lang.Object workingMemoryContext, java.lang.Object context, Tuple match, InternalFactHandle handle, ReteEvaluator reteEvaluator)	Executes the accumulate (action) code for the given fact handle
java.lang.Object	accumulate(java.lang.Object workingMemoryContext, Tuple match, InternalFactHandle childHandle, AccumulateNode.GroupByContext groupByContext, TupleList<AccumulateNode.AccumulateContextEntry> tupleList, ReteEvaluator reteEvaluator)
MultiAccumulate	clone()	Returns a clone from itself
java.lang.Object[]	createFunctionContext()
java.lang.Object[]	createWorkingMemoryContext()
boolean	equals(java.lang.Object obj)
Accumulator[]	getAccumulators()
java.lang.Object[]	getResult(java.lang.Object workingMemoryContext, java.lang.Object context, Tuple leftTuple, ReteEvaluator reteEvaluator)	Gets the result of the accumulation
int	hashCode()
java.lang.Object	init(java.lang.Object workingMemoryContext, java.lang.Object accContext, java.lang.Object funcContext, Tuple leftTuple, ReteEvaluator reteEvaluator)	Executes the initialization block of code
boolean	isMultiFunction()
void	readExternal(java.io.ObjectInput in)
void	replaceAccumulatorDeclaration(Declaration declaration, Declaration resolved)
boolean	supportsReverse()	Returns true if this accumulate supports reverse
boolean	tryReverse(java.lang.Object workingMemoryContext, java.lang.Object context, Tuple leftTuple, InternalFactHandle handle, RightTuple rightParent, LeftTuple match, ReteEvaluator reteEvaluator)	Executes the reverse (action) code for the given fact handle
void	writeExternal(java.io.ObjectOutput out)

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

getInnerDeclarationCache, getInnerDeclarations, getNestedElements, getOuterDeclarations, getRequiredDeclarations, getSource, hasRequiredDeclarations, isGroupBy, isPatternScopeDelimiter, registerClone, replaceDeclaration, requiresLeftActivation, resolveDeclaration

Methods inherited from class java.lang.Object

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

Constructor Detail

MultiAccumulate

public MultiAccumulate()

MultiAccumulate

public MultiAccumulate(RuleConditionElement source,
                       Declaration[] requiredDeclarations,
                       Accumulator[] accumulators,
                       int arraySize)

Method Detail

readExternal

public void readExternal(java.io.ObjectInput in)
                  throws java.io.IOException,
                         java.lang.ClassNotFoundException

Specified by:

readExternal in interface java.io.Externalizable

Overrides:

readExternal in class Accumulate

Throws:

java.io.IOException

java.lang.ClassNotFoundException

writeExternal

public void writeExternal(java.io.ObjectOutput out)
                   throws java.io.IOException

Specified by:

writeExternal in interface java.io.Externalizable

Overrides:

writeExternal in class Accumulate

Throws:

java.io.IOException

isMultiFunction

public boolean isMultiFunction()

Specified by:

isMultiFunction in class Accumulate

getAccumulators

public Accumulator[] getAccumulators()

Specified by:

getAccumulators in class Accumulate

createFunctionContext

public java.lang.Object[] createFunctionContext()

Specified by:

createFunctionContext in class Accumulate

init

public java.lang.Object init(java.lang.Object workingMemoryContext,
                             java.lang.Object accContext,
                             java.lang.Object funcContext,
                             Tuple leftTuple,
                             ReteEvaluator reteEvaluator)

Description copied from class: Accumulate

Executes the initialization block of code

Specified by:

init in class Accumulate

accumulate

public java.lang.Object accumulate(java.lang.Object workingMemoryContext,
                                   java.lang.Object context,
                                   Tuple match,
                                   InternalFactHandle handle,
                                   ReteEvaluator reteEvaluator)

Description copied from class: Accumulate

Executes the accumulate (action) code for the given fact handle

Specified by:

accumulate in class Accumulate

accumulate

public java.lang.Object accumulate(java.lang.Object workingMemoryContext,
                                   Tuple match,
                                   InternalFactHandle childHandle,
                                   AccumulateNode.GroupByContext groupByContext,
                                   TupleList<AccumulateNode.AccumulateContextEntry> tupleList,
                                   ReteEvaluator reteEvaluator)

Specified by:

accumulate in class Accumulate

tryReverse

public boolean tryReverse(java.lang.Object workingMemoryContext,
                          java.lang.Object context,
                          Tuple leftTuple,
                          InternalFactHandle handle,
                          RightTuple rightParent,
                          LeftTuple match,
                          ReteEvaluator reteEvaluator)

Description copied from class: Accumulate

Executes the reverse (action) code for the given fact handle

Specified by:

tryReverse in class Accumulate

supportsReverse

public boolean supportsReverse()

Description copied from class: Accumulate

Returns true if this accumulate supports reverse

Specified by:

supportsReverse in class Accumulate

getResult

public java.lang.Object[] getResult(java.lang.Object workingMemoryContext,
                                    java.lang.Object context,
                                    Tuple leftTuple,
                                    ReteEvaluator reteEvaluator)

Description copied from class: Accumulate

Gets the result of the accumulation

Specified by:

getResult in class Accumulate

replaceAccumulatorDeclaration

public void replaceAccumulatorDeclaration(Declaration declaration,
                                          Declaration resolved)

Specified by:

replaceAccumulatorDeclaration in class Accumulate

clone

public MultiAccumulate clone()

Description copied from interface: RuleConditionElement

Returns a clone from itself

Specified by:

clone in interface RuleConditionElement

Specified by:

clone in class Accumulate

Returns:

createWorkingMemoryContext

public java.lang.Object[] createWorkingMemoryContext()

Specified by:

createWorkingMemoryContext in class Accumulate

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object