Mercurial > hg > graal-compiler
view agent/src/share/classes/sun/jvm/hotspot/utilities/soql/ScriptObject.java @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | c18cbe5936b8 |
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/* * Copyright 2007 Sun Microsystems, Inc. All Rights Reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. */ package sun.jvm.hotspot.utilities.soql; /** * Any Java object supporting this interface can be * accessed from scripts with "simpler" access pattern. * For example, a script engine may support natural * property/field access syntax for the properties exposed * via this interface. We use this interface so that we * can dynamically add/delete/modify fields exposed to * scripts. If we stick to JavaBean pattern, then property * set is fixed. */ public interface ScriptObject { // special sentinel to denote no-result -- so that // null could be used as proper value public static final Object UNDEFINED = new Object(); // empty object array public static final Object[] EMPTY_ARRAY = new Object[0]; /* * Returns all property names supported by this object. * Property "name" is either a String or an Integer". */ public Object[] getIds(); /** * Get the value of the named property. */ public Object get(String name); /** * Get the value of the "indexed" property. * Returns UNDEFINED if the property does not exist. */ public Object get(int index); /** * Set the value of the named property. */ public void put(String name, Object value); /** * Set the value of the indexed property. */ public void put(int index, Object value); /** * Returns whether the named property exists or not. */ public boolean has(String name); /** * Returns whether the indexed property exists or not. */ public boolean has(int index); /** * Deletes the named property. Returns true on success. */ public boolean delete(String name); /** * Deletes the indexed property. Returns true on success. */ public boolean delete(int index); }