001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
010: * License. You can obtain a copy of the License at
011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
015: * Notice in each file and include the License file at
016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * Contributor(s):
025: *
026: * The Original Software is NetBeans. The Initial Developer of the Original
027: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
028: * Microsystems, Inc. All Rights Reserved.
029: *
030: * If you wish your version of this file to be governed by only the CDDL
031: * or only the GPL Version 2, indicate your decision by adding
032: * "[Contributor] elects to include this software in this distribution
033: * under the [CDDL or GPL Version 2] license." If you do not indicate a
034: * single choice of license, a recipient has the option to distribute
035: * your version of this file under either the CDDL, the GPL Version 2 or
036: * to extend the choice of license to its licensees as provided above.
037: * However, if you add GPL Version 2 code and therefore, elected the GPL
038: * Version 2 license, then the option applies only if the new code is
039: * made subject to such option by the copyright holder.
040: */
041: package org.netbeans.modules.vmd.api.model;
042:
043: /**
044: * This immutable class describes the type hierarchy used in component descriptor.
045: * <p>
046: * It holds information about super type id, this type id, instantiate ability, derive ability.
047: *
048: * @author David Kaspar
049: */
050: public final class TypeDescriptor {
051:
052: private final TypeID super Type;
053: private final TypeID this Type;
054: private final boolean canInstantiate;
055: private final boolean canDerive;
056:
057: /**
058: * Creates a new type descriptor used in component descriptor.
059: * @param superType the type id of super/parent component descriptor
060: * @param thisType the type id of this component descriptor
061: * @param canInstantiate true if this component descriptor can be instantiate (a new component could be created from this component descriptor)
062: * @param canDerive true if the component descriptor is not final (other component descriptor could take this one as its super component descriptor)
063: */
064: public TypeDescriptor(TypeID super Type, TypeID this Type,
065: boolean canInstantiate, boolean canDerive) {
066: assert this Type != null;
067: this .super Type = super Type;
068: this .this Type = this Type;
069: this .canInstantiate = canInstantiate;
070: this .canDerive = canDerive;
071: }
072:
073: /**
074: * Returns a type id of a super component descriptor.
075: * @return the super type id
076: */
077: public TypeID getSuperType() {
078: return super Type;
079: }
080:
081: /**
082: * Returns a type id of this component descriptor.
083: * @return this type id
084: */
085: public TypeID getThisType() {
086: return this Type;
087: }
088:
089: /**
090: * Returns an instantiate ability.
091: * @return true if a new component could be created from this component descriptor
092: */
093: public boolean isCanInstantiate() {
094: return canInstantiate;
095: }
096:
097: /**
098: * Returns a derive ability.
099: * @return true if other component descriptor can use this one as their super.
100: */
101: public boolean isCanDerive() {
102: return canDerive;
103: }
104:
105: }
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