Package org.drools.core.base.accumulators

Class CollectAccumulator

java.lang.Object

org.drools.core.base.accumulators.CollectAccumulator

All Implemented Interfaces:

Externalizable, Serializable, Accumulator, Invoker, RuleComponent

public class CollectAccumulator
extends Object
implements Accumulator, Externalizable

An accumulator to execute "collect" CEs

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
CollectAccumulator()
CollectAccumulator(Collect collect, boolean unwrapHandle)

Method Summary

Modifier and Type	Method	Description
Object	accumulate(Object workingMemoryContext, Object context, BaseTuple leftTuple, FactHandle handle, Declaration[] declarations, Declaration[] innerDeclarations, ValueResolver valueResolver)
Object	createContext()
Object	createWorkingMemoryContext()
boolean	equals(Object o)
Object	getResult(Object workingMemoryContext, Object context, BaseTuple leftTuple, Declaration[] declarations, ValueResolver valueResolver)
int	hashCode()
Object	init(Object workingMemoryContext, Object context, BaseTuple leftTuple, Declaration[] declarations, ValueResolver valueResolver)
void	readExternal(ObjectInput in)
boolean	supportsReverse()
boolean	tryReverse(Object workingMemoryContext, Object context, BaseTuple leftTuple, FactHandle handle, Object value, Declaration[] declarations, Declaration[] innerDeclarations, ValueResolver valueResolver)
void	writeExternal(ObjectOutput out)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.drools.base.rule.accessor.Accumulator

getRequiredDeclarations, replaceDeclaration

Methods inherited from interface org.drools.base.rule.accessor.Invoker

wrapsCompiledInvoker

Constructor Details

CollectAccumulator

public CollectAccumulator()

CollectAccumulator

public CollectAccumulator(Collect collect,
 boolean unwrapHandle)

Method Details

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

createContext

public Object createContext()

Specified by:

createContext in interface Accumulator

init

public Object init(Object workingMemoryContext,
 Object context,
 BaseTuple leftTuple,
 Declaration[] declarations,
 ValueResolver valueResolver)

Specified by:

init in interface Accumulator

accumulate

public Object accumulate(Object workingMemoryContext,
 Object context,
 BaseTuple leftTuple,
 FactHandle handle,
 Declaration[] declarations,
 Declaration[] innerDeclarations,
 ValueResolver valueResolver)

Specified by:

accumulate in interface Accumulator

tryReverse

public boolean tryReverse(Object workingMemoryContext,
 Object context,
 BaseTuple leftTuple,
 FactHandle handle,
 Object value,
 Declaration[] declarations,
 Declaration[] innerDeclarations,
 ValueResolver valueResolver)

Specified by:

tryReverse in interface Accumulator

getResult

public Object getResult(Object workingMemoryContext,
 Object context,
 BaseTuple leftTuple,
 Declaration[] declarations,
 ValueResolver valueResolver)

Specified by:

getResult in interface Accumulator

supportsReverse

public boolean supportsReverse()

Specified by:

supportsReverse in interface Accumulator

createWorkingMemoryContext

public Object createWorkingMemoryContext()

Specified by:

createWorkingMemoryContext in interface Accumulator

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object