Package org.drools.mvel

Class MVELGroupByAccumulate

java.lang.Object

org.drools.base.rule.ConditionalElement

org.drools.base.rule.Accumulate

org.drools.mvel.MVELGroupByAccumulate

All Implemented Interfaces:

Externalizable, Serializable, Cloneable, org.drools.base.rule.PatternSource, org.drools.base.rule.RuleComponent, org.drools.base.rule.RuleConditionElement

public class MVELGroupByAccumulate
extends org.drools.base.rule.Accumulate

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	MVELGroupByAccumulate.GroupingFunctionWirer

Field Summary

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

cloned, innerDeclarationCache, requiredDeclarations, source

Constructor Summary

Constructors

Constructor	Description
MVELGroupByAccumulate()
MVELGroupByAccumulate(org.drools.base.rule.Accumulate innerAccumulate, org.drools.base.rule.Declaration[] groupingDeclarations, org.drools.base.rule.accessor.ReturnValueExpression groupingFunction, boolean isMvel)

Method Summary

Modifier and Type	Method	Description
Object	accumulate(Object workingMemoryContext, Object context, org.drools.base.reteoo.BaseTuple match, FactHandle handle, org.drools.base.base.ValueResolver valueResolver)
Object	accumulate(Object workingMemoryContext, org.drools.base.reteoo.BaseTuple match, FactHandle handle, Object groupByContext, Object tupleList, org.drools.base.base.ValueResolver valueResolver)
org.drools.base.rule.Accumulate	clone()
Object	createFunctionContext()
Object	createWorkingMemoryContext()
org.drools.base.rule.accessor.Accumulator[]	getAccumulators()
org.drools.base.rule.Accumulate	getInnerAccumulate()
Object	getResult(Object workingMemoryContext, Object context, org.drools.base.reteoo.BaseTuple leftTuple, org.drools.base.base.ValueResolver valueResolver)
Object	init(Object workingMemoryContext, Object accContext, Object funcContext, org.drools.base.reteoo.BaseTuple leftTuple, org.drools.base.base.ValueResolver valueResolver)
boolean	isGroupBy()
boolean	isMultiFunction()
void	readExternal(ObjectInput in)
void	replaceAccumulatorDeclaration(org.drools.base.rule.Declaration declaration, org.drools.base.rule.Declaration resolved)
boolean	supportsReverse()
boolean	tryReverse(Object workingMemoryContext, Object context, org.drools.base.reteoo.BaseTuple leftTuple, FactHandle handle, org.drools.base.reteoo.BaseTuple match, org.drools.base.base.ValueResolver valueResolver)
void	writeExternal(ObjectOutput out)

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

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

Methods inherited from class java.lang.Object

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

Constructor Details

MVELGroupByAccumulate

public MVELGroupByAccumulate()

MVELGroupByAccumulate

public MVELGroupByAccumulate(org.drools.base.rule.Accumulate innerAccumulate,
 org.drools.base.rule.Declaration[] groupingDeclarations,
 org.drools.base.rule.accessor.ReturnValueExpression groupingFunction,
 boolean isMvel)

Method Details

getInnerAccumulate

public org.drools.base.rule.Accumulate getInnerAccumulate()

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Overrides:

readExternal in class org.drools.base.rule.Accumulate

Throws:

IOException

ClassNotFoundException

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Overrides:

writeExternal in class org.drools.base.rule.Accumulate

Throws:

IOException

getAccumulators

public org.drools.base.rule.accessor.Accumulator[] getAccumulators()

Specified by:

getAccumulators in class org.drools.base.rule.Accumulate

createFunctionContext

public Object createFunctionContext()

Specified by:

createFunctionContext in class org.drools.base.rule.Accumulate

init

public Object init(Object workingMemoryContext,
 Object accContext,
 Object funcContext,
 org.drools.base.reteoo.BaseTuple leftTuple,
 org.drools.base.base.ValueResolver valueResolver)

Specified by:

init in class org.drools.base.rule.Accumulate

accumulate

public Object accumulate(Object workingMemoryContext,
 Object context,
 org.drools.base.reteoo.BaseTuple match,
 FactHandle handle,
 org.drools.base.base.ValueResolver valueResolver)

Specified by:

accumulate in class org.drools.base.rule.Accumulate

accumulate

public Object accumulate(Object workingMemoryContext,
 org.drools.base.reteoo.BaseTuple match,
 FactHandle handle,
 Object groupByContext,
 Object tupleList,
 org.drools.base.base.ValueResolver valueResolver)

Specified by:

accumulate in class org.drools.base.rule.Accumulate

tryReverse

public boolean tryReverse(Object workingMemoryContext,
 Object context,
 org.drools.base.reteoo.BaseTuple leftTuple,
 FactHandle handle,
 org.drools.base.reteoo.BaseTuple match,
 org.drools.base.base.ValueResolver valueResolver)

Specified by:

tryReverse in class org.drools.base.rule.Accumulate

getResult

public Object getResult(Object workingMemoryContext,
 Object context,
 org.drools.base.reteoo.BaseTuple leftTuple,
 org.drools.base.base.ValueResolver valueResolver)

Specified by:

getResult in class org.drools.base.rule.Accumulate

supportsReverse

public boolean supportsReverse()

Specified by:

supportsReverse in class org.drools.base.rule.Accumulate

clone

public org.drools.base.rule.Accumulate clone()

Specified by:

clone in interface org.drools.base.rule.RuleConditionElement

Specified by:

clone in class org.drools.base.rule.Accumulate

createWorkingMemoryContext

public Object createWorkingMemoryContext()

Specified by:

createWorkingMemoryContext in class org.drools.base.rule.Accumulate

isMultiFunction

public boolean isMultiFunction()

Specified by:

isMultiFunction in class org.drools.base.rule.Accumulate

replaceAccumulatorDeclaration

public void replaceAccumulatorDeclaration(org.drools.base.rule.Declaration declaration,
 org.drools.base.rule.Declaration resolved)

Specified by:

replaceAccumulatorDeclaration in class org.drools.base.rule.Accumulate

isGroupBy

public boolean isGroupBy()

Overrides:

isGroupBy in class org.drools.base.rule.Accumulate