Package org.drools.mvel.expr

Class MVELAccumulatorFunctionExecutor

java.lang.Object

org.drools.mvel.expr.MVELAccumulatorFunctionExecutor

All Implemented Interfaces:

Externalizable, Serializable, org.drools.core.spi.Accumulator, org.drools.core.spi.Invoker, org.drools.core.spi.MvelAccumulator, org.drools.core.spi.RuleComponent, MVELCompileable

public class MVELAccumulatorFunctionExecutor
extends Object
implements MVELCompileable, Externalizable, org.drools.core.spi.MvelAccumulator

An MVEL accumulator function executor implementation

See Also:

Serialized Form

Nested Class Summary

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

org.drools.core.spi.Accumulator.SafeAccumulator

Constructor Summary

Constructors

Constructor	Description
MVELAccumulatorFunctionExecutor()
MVELAccumulatorFunctionExecutor(MVELCompilationUnit unit, org.kie.api.runtime.rule.AccumulateFunction function)

Method Summary

Modifier and Type	Method	Description
Object	accumulate(Object workingMemoryContext, Object context, org.drools.core.spi.Tuple tuple, org.drools.core.common.InternalFactHandle handle, org.drools.core.rule.Declaration[] declarations, org.drools.core.rule.Declaration[] innerDeclarations, org.drools.core.WorkingMemory workingMemory)
void	compile(MVELDialectRuntimeData runtimeData)
void	compile(MVELDialectRuntimeData runtimeData, org.drools.core.definitions.rule.impl.RuleImpl rule)
Object	createContext()
Object	createWorkingMemoryContext()
org.drools.core.rule.Declaration[]	getRequiredDeclarations()
Object	getResult(Object workingMemoryContext, Object context, org.drools.core.spi.Tuple leftTuple, org.drools.core.rule.Declaration[] declarations, org.drools.core.WorkingMemory workingMemory)
Object	init(Object workingMemoryContext, Object context, org.drools.core.spi.Tuple leftTuple, org.drools.core.rule.Declaration[] declarations, org.drools.core.WorkingMemory workingMemory)
void	readExternal(ObjectInput in)
void	replaceDeclaration(org.drools.core.rule.Declaration declaration, org.drools.core.rule.Declaration resolved)
boolean	supportsReverse()
boolean	tryReverse(Object workingMemoryContext, Object context, org.drools.core.spi.Tuple leftTuple, org.drools.core.common.InternalFactHandle handle, Object value, org.drools.core.rule.Declaration[] declarations, org.drools.core.rule.Declaration[] innerDeclarations, org.drools.core.WorkingMemory workingMemory)
void	writeExternal(ObjectOutput out)

Methods inherited from class java.lang.Object

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

Constructor Detail

MVELAccumulatorFunctionExecutor

public MVELAccumulatorFunctionExecutor()

MVELAccumulatorFunctionExecutor

public MVELAccumulatorFunctionExecutor(MVELCompilationUnit unit,
                                       org.kie.api.runtime.rule.AccumulateFunction function)

Method Detail

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Throws:

IOException

ClassNotFoundException

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException

compile

public void compile(MVELDialectRuntimeData runtimeData)

Specified by:

compile in interface MVELCompileable

compile

public void compile(MVELDialectRuntimeData runtimeData,
                    org.drools.core.definitions.rule.impl.RuleImpl rule)

Specified by:

compile in interface MVELCompileable

createContext

public Object createContext()

Specified by:

createContext in interface org.drools.core.spi.Accumulator

init

public Object init(Object workingMemoryContext,
                   Object context,
                   org.drools.core.spi.Tuple leftTuple,
                   org.drools.core.rule.Declaration[] declarations,
                   org.drools.core.WorkingMemory workingMemory)

Specified by:

init in interface org.drools.core.spi.Accumulator

accumulate

public Object accumulate(Object workingMemoryContext,
                         Object context,
                         org.drools.core.spi.Tuple tuple,
                         org.drools.core.common.InternalFactHandle handle,
                         org.drools.core.rule.Declaration[] declarations,
                         org.drools.core.rule.Declaration[] innerDeclarations,
                         org.drools.core.WorkingMemory workingMemory)

Specified by:

accumulate in interface org.drools.core.spi.Accumulator

tryReverse

public boolean tryReverse(Object workingMemoryContext,
                          Object context,
                          org.drools.core.spi.Tuple leftTuple,
                          org.drools.core.common.InternalFactHandle handle,
                          Object value,
                          org.drools.core.rule.Declaration[] declarations,
                          org.drools.core.rule.Declaration[] innerDeclarations,
                          org.drools.core.WorkingMemory workingMemory)

Specified by:

tryReverse in interface org.drools.core.spi.Accumulator

getResult

public Object getResult(Object workingMemoryContext,
                        Object context,
                        org.drools.core.spi.Tuple leftTuple,
                        org.drools.core.rule.Declaration[] declarations,
                        org.drools.core.WorkingMemory workingMemory)

Specified by:

getResult in interface org.drools.core.spi.Accumulator

supportsReverse

public boolean supportsReverse()

Specified by:

supportsReverse in interface org.drools.core.spi.Accumulator

createWorkingMemoryContext

public Object createWorkingMemoryContext()

Specified by:

createWorkingMemoryContext in interface org.drools.core.spi.Accumulator

getRequiredDeclarations

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

Specified by:

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

replaceDeclaration

public void replaceDeclaration(org.drools.core.rule.Declaration declaration,
                               org.drools.core.rule.Declaration resolved)

Specified by:

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