runtime/org.argeo.slc.specs/src/main/java/org/argeo/slc/execution/ExecutionSpecAttribute.java

   1 /*
   2  * Copyright (C) 2010 Mathieu Baudier <mbaudier@argeo.org>
   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
  17 package org.argeo.slc.execution;
  18
  19 /**
  20  *
  21  * This interface stands for one attribute of a given flow.
  22  *
  23  * We mainly have two implementations :
  24  *
  25  * + Primitive attributes (no predefined choice, the end user must compute a
  26  * String, a Float, an Integer...)
  27  *
  28  * + RefSpecAttribute which enable two things + a reference to another object of
  29  * the application context + the display of some choices among which the end
  30  * user can choose.
  31  *
  32  * Note :
  33  *
  34  * @see org.argeo.slc.core.execution.PrimitiveUtils : this class offers some
  35  *      helper, among others to cast the various type of primitive attribute.
  36  *
  37  * @author bsinou
  38  *
  39  */
  40 public interface ExecutionSpecAttribute {
  41         public Object getValue();
  42
  43         public Boolean getIsParameter();
  44
  45         public Boolean getIsFrozen();
  46
  47         public Boolean getIsHidden();
  48
  49 }