ValueMetaPlugin.java

/*! ******************************************************************************
 *
 * Pentaho Data Integration
 *
 * Copyright (C) 2002-2013 by Pentaho : http://www.pentaho.com
 *
 *******************************************************************************
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 *    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,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 ******************************************************************************/

package org.pentaho.di.core.row.value;

import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * Classes annotated with "ValueMetaPlugin" are automatically recognized and registered as a new data type in the form
 * of a ValueMetaInterface class.
 *
 * @author matt
 *
 */
@Documented
@Retention( RetentionPolicy.RUNTIME )
@Target( ElementType.TYPE )
public @interface ValueMetaPlugin {
  /**
   * @return The ID of the step. You can specify more than one ID in a comma separated format: id1,id2,id3 for
   *         deprecation purposes.
   */
  String id();

  String name();

  String description() default "";

  /**
   * @return True if a separate class loader is needed every time this class is instantiated
   */
  boolean isSeparateClassLoaderNeeded() default false;

  String documentationUrl() default "";

  String casesUrl() default "";

  String forumUrl() default "";

  String classLoaderGroup() default "";
}