2 * Copyright (C) 2007-2012 Argeo GmbH
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
16 package org
.argeo
.slc
.execution
;
18 /** Deal with nested level of executions using different variables. */
19 public interface ExecutionStack
{
22 * @return null if no object is found
24 public Object
findScopedObject(String name
);
26 public void addScopedObject(String name
, Object obj
);
28 public void enterFlow(ExecutionFlow executionFlow
);
30 /** @return internal stack level UUID. */
31 public String
getCurrentStackLevelUuid();
33 public Integer
getStackSize();
35 public void leaveFlow(ExecutionFlow executionFlow
);
37 Object
findLocalVariable(String key
);