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ReteooRuleBase (Drools 4.0.0.11754MR2 API) - JBoss RULES 4.0.0.11754MR2 API 英文版文档

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org.drools.reteoo
Class ReteooRuleBase

java.lang.Object
  org.drools.common.AbstractRuleBase
      org.drools.reteoo.ReteooRuleBase

All Implemented Interfaces:

Externalizable, Serializable, InternalRuleBase, RuleBase

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public class ReteooRuleBase
extends AbstractRuleBase

Implementation of RuleBase.

Version:

$Id: RuleBaseImpl.java,v 1.5 2005/08/14 22:44:12 mproctor Exp $

Author:

bob mcwhirter, Mark Proctor

See Also:

Serialized Form

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Field Summary

 

Fields inherited from class org.drools.common.AbstractRuleBase
config, factHandleFactory, globals, id, packageClassLoader, pkgs, processes, statefulSessions, workingMemoryCounter

 

Fields inherited from interface org.drools.RuleBase
LEAPS, RETEOO

 

Constructor Summary
ReteooRuleBase()           Default constructor - for Externalizable.
ReteooRuleBase(RuleBaseConfiguration config)
ReteooRuleBase(String id)           Construct.
ReteooRuleBase(String id, FactHandleFactory factHandleFactory)
ReteooRuleBase(String id, RuleBaseConfiguration config)
ReteooRuleBase(String id, RuleBaseConfiguration config, FactHandleFactory factHandleFactory)           Construct.

 

Method Summary
protected  void	addRule(Rule rule)
void	assertObject(FactHandle handle, Object object, PropagationContext context, ReteooWorkingMemory workingMemory)           Assert a fact object.
Rete	getRete()           Retrieve the Rete-OO network for this RuleBase.
StatefulSession	newStatefulSession(boolean keepReference)           Create a new WorkingMemory session for this RuleBase.
StatelessSession	newStatelessSession()
void	readExternal(ObjectInput stream)           Handles the read serialization of the Package.
protected  void	removeRule(Rule rule)
void	retractObject(FactHandle handle, PropagationContext context, ReteooWorkingMemory workingMemory)           Retract a fact object.
void	writeExternal(ObjectOutput stream)           Handles the write serialization of the Package.

 

Methods inherited from class org.drools.common.AbstractRuleBase
addPackage, addProcess, addStatefulSession, disposeStatefulSession, doReadExternal, doWriteExternal, getConfiguration, getFactHandleFactory, getGlobals, getId, getPackages, getProcess, getProcesses, getStatefulSessions, getWorkingMemories, newFactHandleFactory, newStatefulSession, newStatefulSession, newStatefulSession, removePackage, removeProcess, removeRule

 

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Constructor Detail

ReteooRuleBase

public ReteooRuleBase()

Default constructor - for Externalizable. This should never be used by a user, as it will result in an invalid state for the instance.

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ReteooRuleBase

public ReteooRuleBase(String id)

Construct.

Parameters:

rete - The rete network.

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ReteooRuleBase

public ReteooRuleBase(String id,
                      FactHandleFactory factHandleFactory)

Parameters:

factHandleFactory -

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ReteooRuleBase

public ReteooRuleBase(String id,
                      RuleBaseConfiguration config)

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ReteooRuleBase

public ReteooRuleBase(RuleBaseConfiguration config)

Parameters:

config -

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ReteooRuleBase

public ReteooRuleBase(String id,
                      RuleBaseConfiguration config,
                      FactHandleFactory factHandleFactory)

Construct.

Parameters:

rete - The rete network.

Method Detail

writeExternal

public void writeExternal(ObjectOutput stream)
                   throws IOException

Handles the write serialization of the Package. Patterns in Rules may reference generated data which cannot be serialized by default methods. The Package uses PackageCompilationData to hold a reference to the generated bytecode. The generated bytecode must be restored before any Rules.

Throws:

IOException

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readExternal

public void readExternal(ObjectInput stream)
                  throws IOException,
                         ClassNotFoundException

Handles the read serialization of the Package. Patterns in Rules may reference generated data which cannot be serialized by default methods. The Package uses PackageCompilationData to hold a reference to the generated bytecode; which must be restored before any Rules. A custom ObjectInputStream, able to resolve classes against the bytecode in the PackageCompilationData, is used to restore the Rules.

Throws:

IOException

ClassNotFoundException

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getRete

public Rete getRete()

Retrieve the Rete-OO network for this RuleBase.

Returns:

The RETE-OO network.

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assertObject

public void assertObject(FactHandle handle,
                         Object object,
                         PropagationContext context,
                         ReteooWorkingMemory workingMemory)
                  throws FactException

Assert a fact object.

Parameters:

handle - The handle.

object - The fact.

workingMemory - The working-memory.

Throws:

FactException - If an error occurs while performing the assertion.

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retractObject

public void retractObject(FactHandle handle,
                          PropagationContext context,
                          ReteooWorkingMemory workingMemory)
                   throws FactException

Retract a fact object.

Parameters:

handle - The handle.

workingMemory - The working-memory.

Throws:

FactException - If an error occurs while performing the retraction.

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newStatefulSession

public StatefulSession newStatefulSession(boolean keepReference)

Description copied from interface: RuleBase

Create a new WorkingMemory session for this RuleBase. Optionally the RuleBase retains a weak reference to returned WorkingMemory.

The created WorkingMemory uses the default conflict resolution strategy.

Specified by:

newStatefulSession in interface RuleBase

Specified by:

newStatefulSession in class AbstractRuleBase

Returns:

A newly initialized WorkingMemory.

See Also:

RuleBase

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newStatelessSession

public StatelessSession newStatelessSession()

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addRule

protected void addRule(Rule rule)
                throws InvalidPatternException

Overrides:

addRule in class AbstractRuleBase

Throws:

InvalidPatternException

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removeRule

protected void removeRule(Rule rule)

Specified by:

removeRule in class AbstractRuleBase

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