| org.drools.spi.Accumulator
All known Subclasses: org.drools.reteoo.MockAccumulator, org.drools.base.mvel.MVELAccumulator, org.drools.base.accumulators.MVELAccumulatorFunctionExecutor, org.drools.base.accumulators.JavaAccumulatorFunctionExecutor,
| Accumulator | | public interface Accumulator extends Invoker(Code) | | Accumulator
Created: 04/06/2006
author:
Edson Tirelli
version:
$Id: Accumulator.java 13464 2007-07-13 22:15:50Z tirelli $ |
| Method Summary | |
| public void | accumulate(Object workingMemoryContext, Object context, Tuple leftTuple, InternalFactHandle handle, Declaration[] declarations, Declaration[] innerDeclarations, WorkingMemory workingMemory)
| | public Object | createContext()
Creates the context object for an accumulator session. | | public Object | createWorkingMemoryContext()
| | public Object | getResult(Object workingMemoryContext, Object context, Tuple leftTuple, Declaration[] declarations, WorkingMemory workingMemory)
| | public void | init(Object workingMemoryContext, Object context, Tuple leftTuple, Declaration[] declarations, WorkingMemory workingMemory)
| | public void | reverse(Object workingMemoryContext, Object context, Tuple leftTuple, InternalFactHandle handle, Declaration[] declarations, Declaration[] innerDeclarations, WorkingMemory workingMemory)
| | public boolean | supportsReverse()
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| createContext | | public Object createContext()(Code) | | Creates the context object for an accumulator session.
The context is passed as a parameter to every subsequent accumulator
method call in the same session.
|
| createWorkingMemoryContext | | public Object createWorkingMemoryContext()(Code) | | Creates and return a context object for each working memory instance
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| init | | public void init(Object workingMemoryContext, Object context, Tuple leftTuple, Declaration[] declarations, WorkingMemory workingMemory) throws Exception(Code) | | Executes the initialization block of code
Parameters:
leftTuple - tuple causing the rule fire
Parameters:
declarations - previous declarations
Parameters:
workingMemory -
throws:
Exception - |
| supportsReverse | | public boolean supportsReverse()(Code) | | Returns true if this accumulator supports operation reversal
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