internalrulebase.java

jboss规则引擎

package org.drools.common;
/*
 * Copyright 2005 JBoss Inc
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.util.Map;

import org.drools.FactException;
import org.drools.FactHandle;
import org.drools.RuleBase;
import org.drools.RuleBaseConfiguration;
import org.drools.WorkingMemory;
import org.drools.reteoo.ReteooWorkingMemory;
import org.drools.spi.FactHandleFactory;
import org.drools.spi.PropagationContext;

public interface InternalRuleBase
    extends
    RuleBase {

    public FactHandleFactory newFactHandleFactory();

    public Map getGlobals();

    public RuleBaseConfiguration getConfiguration();

    void disposeWorkingMemory(WorkingMemory workingMemory);

    /**
     * Assert a fact object.
     * 
     * @param handle
     *            The handle.
     * @param object
     *            The fact.
     * @param workingMemory
     *            The working-memory.
     * 
     * @throws FactException
     *             If an error occurs while performing the assertion.
     */
    public void assertObject(FactHandle handle,
                             Object object,
                             PropagationContext context,
                             ReteooWorkingMemory workingMemory) throws FactException;

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

    /**
     * Retract a fact object.
     * 
     * @param handle
     *            The handle.
     * @param workingMemory
     *            The working-memory.
     * 
     * @throws FactException
     *             If an error occurs while performing the retraction.
     */
    public void retractObject(FactHandle handle,
                              PropagationContext context,
                              ReteooWorkingMemory workingMemory) throws FactException;
}