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Java example source code file (Compilable.java)

This example Java source code file (Compilable.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

compilable, compiledscript, scriptexception, util

The Compilable.java Java example source code

/*
 * Copyright (c) 2005, Oracle and/or its affiliates. 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.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package javax.script;

import java.util.Map;
import java.io.Reader;

/**
 * The optional interface implemented by ScriptEngines whose methods compile scripts
 * to a form that can be executed repeatedly without recompilation.
 *
 * @author Mike Grogan
 * @since 1.6
 */
public interface Compilable {
    /**
     * Compiles the script (source represented as a <code>String) for
     * later execution.
     *
     * @param script The source of the script, represented as a <code>String.
     *
     * @return An subclass of <code>CompiledScript to be executed later using one
     * of the <code>eval methods of CompiledScript.
     *
     * @throws ScriptException if compilation fails.
     * @throws NullPointerException if the argument is null.
     *
     */

    public CompiledScript compile(String script) throws
            ScriptException;

    /**
     * Compiles the script (source read from <code>Reader) for
     * later execution.  Functionality is identical to
     * <code>compile(String) other than the way in which the source is
     * passed.
     *
     * @param script The reader from which the script source is obtained.
     *
     * @return An implementation of <code>CompiledScript to be executed
     * later using one of its <code>eval methods of CompiledScript.
     *
     * @throws ScriptException if compilation fails.
     * @throws NullPointerException if argument is null.
     */
    public CompiledScript compile(Reader script) throws
            ScriptException;
}

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