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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
/**
 * 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 String) for
later execution.

Params:
  • script – The source of the script, represented as a String.
Throws:
Returns:An instance of a subclass of CompiledScript to be executed later using one
of the eval methods of CompiledScript.
/**
     * Compiles the script (source represented as a <code>String</code>) for
     * later execution.
     *
     * @param script The source of the script, represented as a <code>String</code>.
     *
     * @return An instance of a subclass of <code>CompiledScript</code> to be executed later using one
     * of the <code>eval</code> methods of <code>CompiledScript</code>.
     *
     * @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 Reader) for
later execution.  Functionality is identical to
compile(String) other than the way in which the source is
passed.

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