packagedescr.java

jboss规则引擎

package org.drools.lang.descr;

/*
 * 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.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class PackageDescr extends PatternDescr {
    /**
     * 
     */
    private static final long serialVersionUID = 4491974850482281807L;
    private final String name;
    private final String documentation;

    private List         imports    = Collections.EMPTY_LIST;
    private List         attributes = Collections.EMPTY_LIST;
    private Map          globals    = Collections.EMPTY_MAP;
    private List         functions  = Collections.EMPTY_LIST;
    private List         rules      = Collections.EMPTY_LIST;

    public PackageDescr(final String name) {
        this( name,
              "" );
    }

    public PackageDescr(final String name,
                        final String documentation) {
        this.name = name;
        this.documentation = documentation;
    }

    public String getName() {
        return this.name;
    }

    public String getDocumentation() {
        return this.documentation;
    }

    public void addImport(final String importEntry) {
        if ( this.imports == Collections.EMPTY_LIST ) {
            this.imports = new ArrayList();
        }
        this.imports.add( importEntry );
    }

    public List getImports() {
        return this.imports;
    }

    public void addGlobal(final String identifier,
                          final String type) {
        if ( this.globals == Collections.EMPTY_MAP ) {
            this.globals = new HashMap();
        }
        this.globals.put( identifier,
                          type );
    }

    public Map getGlobals() {
        return this.globals;
    }

    public void addAttribute(final AttributeDescr attribute) {
        if ( this.attributes == Collections.EMPTY_LIST ) {
            this.attributes = new ArrayList();
        }
        this.attributes.add( attribute );
    }

    public List getAttributes() {
        return this.attributes;
    }

    public void addFunction(final FunctionDescr function) {
        if ( this.functions == Collections.EMPTY_LIST ) {
            this.functions = new ArrayList( 1 );
        }
        this.functions.add( function );
    }

    public List getFunctions() {
        return this.functions;
    }

    public void addRule(final RuleDescr rule) {
        if ( this.rules == Collections.EMPTY_LIST ) {
            this.rules = new ArrayList( 1 );
        }
        this.rules.add( rule );
    }

    public List getRules() {
        return this.rules;
    }
}