org.apache.batik.script.Interpreter Maven / Gradle / Ivy
/*
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this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
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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,
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See the License for the specific language governing permissions and
limitations under the License.
*/
package org.apache.batik.script;
import java.io.IOException;
import java.io.Reader;
import java.io.Writer;
/**
* A high level interface that represents an interpreter engine for
* a particular scripting language.
*
* @author Christophe Jolif
* @version $Id: Interpreter.java 1733416 2016-03-03 07:07:13Z gadams $
*/
public interface Interpreter extends org.apache.batik.i18n.Localizable {
/**
* Returns the content types of the scripting languages this interpreter
* handles.
*/
String[] getMimeTypes();
/**
* This method should evaluate a piece of script associated to a given
* description.
*
* @param scriptreader a java.io.Reader on the piece of script
* @param description description which can be later used (e.g., for error
* messages).
* @return if no exception is thrown during the call, should return the
* value of the last expression evaluated in the script
*/
Object evaluate(Reader scriptreader, String description)
throws InterpreterException, IOException;
/**
* This method should evaluate a piece of script.
*
* @param scriptreader a java.io.Reader on the piece of script
* @return if no exception is thrown during the call, should return the
* value of the last expression evaluated in the script
*/
Object evaluate(Reader scriptreader)
throws InterpreterException, IOException;
/**
* This method should evaluate a piece of script using a String
* instead of a Reader. This usually allows do easily do some
* caching.
*
* @param script the piece of script
* @return if no exception is thrown during the call, should return the
* value of the last expression evaluated in the script
*/
Object evaluate(String script)
throws InterpreterException;
/**
* This method should register a particular Java Object in
* the environment of the interpreter.
*
* @param name the name of the script object to create
* @param object the Java object
*/
void bindObject(String name, Object object);
/**
* This method should change the output Writer that will be
* used when output function of the scripting langage is used.
*
* @param output the new out Writer.
*/
void setOut(Writer output);
/**
* This method can dispose resources used by the interpreter when it is
* no longer used. Be careful, you SHOULD NOT use this interpreter instance
* after calling this method.
*/
void dispose();
}