org.drools.core.rule

Class SingleAccumulate

java.lang.Object

org.drools.core.rule.ConditionalElement

org.drools.core.rule.Accumulate

org.drools.core.rule.SingleAccumulate

All Implemented Interfaces:

Externalizable, Serializable, Cloneable, PatternSource, RuleConditionElement, RuleComponent

public class SingleAccumulate
extends Accumulate

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	SingleAccumulate.Wirer

Field Summary

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

cloned, innerDeclarationCache, requiredDeclarations, source

Constructor Summary

Constructors

Constructor and Description
SingleAccumulate()
SingleAccumulate(RuleConditionElement source, Declaration[] requiredDeclarations)
SingleAccumulate(RuleConditionElement source, Declaration[] requiredDeclarations, Accumulator accumulator)

Method Summary

Modifier and Type	Method and Description
void	accumulate(Object workingMemoryContext, Object context, Tuple leftTuple, InternalFactHandle handle, WorkingMemory workingMemory) Executes the accumulate (action) code for the given fact handle
SingleAccumulate	clone() Returns a clone from itself
Serializable	createContext()
Object	createWorkingMemoryContext()
boolean	equals(Object obj)
Accumulator[]	getAccumulators()
Object	getResult(Object workingMemoryContext, Object context, Tuple leftTuple, WorkingMemory workingMemory) Gets the result of the accumulation
int	hashCode()
void	init(Object workingMemoryContext, Object context, Tuple leftTuple, WorkingMemory workingMemory) Executes the initialization block of code
boolean	isMultiFunction()
void	readExternal(ObjectInput in)
protected void	replaceAccumulatorDeclaration(Declaration declaration, Declaration resolved)
void	reverse(Object workingMemoryContext, Object context, Tuple leftTuple, InternalFactHandle handle, WorkingMemory workingMemory) Executes the reverse (action) code for the given fact handle
boolean	supportsReverse() Returns true if this accumulate supports reverse
void	writeExternal(ObjectOutput out)

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

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

Methods inherited from class java.lang.Object

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

Constructor Detail

SingleAccumulate

public SingleAccumulate()

SingleAccumulate

public SingleAccumulate(RuleConditionElement source,
                        Declaration[] requiredDeclarations)

SingleAccumulate

public SingleAccumulate(RuleConditionElement source,
                        Declaration[] requiredDeclarations,
                        Accumulator accumulator)

Method Detail

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Overrides:

readExternal in class Accumulate

Throws:

IOException

ClassNotFoundException

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Overrides:

writeExternal in class Accumulate

Throws:

IOException

isMultiFunction

public boolean isMultiFunction()

Specified by:

isMultiFunction in class Accumulate

getAccumulators

public Accumulator[] getAccumulators()

Specified by:

getAccumulators in class Accumulate

createContext

public Serializable createContext()

Specified by:

createContext in class Accumulate

init

public void init(Object workingMemoryContext,
                 Object context,
                 Tuple leftTuple,
                 WorkingMemory workingMemory)

Description copied from class: Accumulate

Executes the initialization block of code

Specified by:

init in class Accumulate

accumulate

public void accumulate(Object workingMemoryContext,
                       Object context,
                       Tuple leftTuple,
                       InternalFactHandle handle,
                       WorkingMemory workingMemory)

Description copied from class: Accumulate

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

Specified by:

accumulate in class Accumulate

reverse

public void reverse(Object workingMemoryContext,
                    Object context,
                    Tuple leftTuple,
                    InternalFactHandle handle,
                    WorkingMemory workingMemory)

Description copied from class: Accumulate

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

Specified by:

reverse 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 Object getResult(Object workingMemoryContext,
                        Object context,
                        Tuple leftTuple,
                        WorkingMemory workingMemory)

Description copied from class: Accumulate

Gets the result of the accumulation

Specified by:

getResult in class Accumulate

clone

public SingleAccumulate clone()

Description copied from interface: RuleConditionElement

Returns a clone from itself

Specified by:

clone in interface RuleConditionElement

Specified by:

clone in class Accumulate

Returns:

replaceAccumulatorDeclaration

protected void replaceAccumulatorDeclaration(Declaration declaration,
                                             Declaration resolved)

Specified by:

replaceAccumulatorDeclaration in class Accumulate

createWorkingMemoryContext

public Object createWorkingMemoryContext()

Specified by:

createWorkingMemoryContext in class Accumulate

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object