/*
 * Copyright 2010-2020 Alfresco Software, Ltd.
 *
 * 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.activiti.bpmn.model;

import java.util.List;
import java.util.Map;

/**
 * interface for accessing Element attributes.
 *
 */
public interface HasExtensionAttributes {
  /** get element's attributes */
  Map<String, List<ExtensionAttribute>> getAttributes();

  /**
   * return value of the attribute from given namespace with given name.
   *
   * @param namespace
   * @param name
   * @return attribute value or null in case when attribute was not found
   */
  String getAttributeValue(String namespace, String name);

  /** add attribute to the object */
  void addAttribute(ExtensionAttribute attribute);

  /** set all object's attributes */
  void setAttributes(Map<String, List<ExtensionAttribute>> attributes);
}
