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1   /*
2    * Copyright (C) 2007-2012 Argeo GmbH
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *         http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package org.argeo.slc.execution;
17  
18  /** Variables or references attached to an execution (typically thread bounded).*/
19  public interface ExecutionContext {
20  	public final static String VAR_EXECUTION_CONTEXT_ID = "slcVar.executionContext.id";
21  	public final static String VAR_EXECUTION_CONTEXT_CREATION_DATE = "slcVar.executionContext.creationDate";
22  	public final static String VAR_FLOW_ID = "slcVar.flow.id";
23  	public final static String VAR_FLOW_NAME = "slcVar.flow.name";
24  
25  	public String getUuid();
26  
27  	/** @return the variable value, or <code>null</code> if not found. */
28  	public Object getVariable(String key);
29  
30  	public void setVariable(String key, Object value);
31  	
32  	public void beforeFlow(ExecutionFlow executionFlow);
33  	
34  	public void afterFlow(ExecutionFlow executionFlow);
35  }