+/*
+ * Copyright (C) 2010 Mathieu Baudier <mbaudier@argeo.org>
+ *
+ * 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.argeo.slc.execution;
+/**
+ * This interface stands for one attribute of a given flow.
+ *
+ * We mainly have two implementations :
+ *
+ * + Primitive attributes (no predefined choice, the end user must compute a
+ * String, a Float, an Integer...)
+ *
+ * + RefSpecAttribute which enable two things + a reference to another object of
+ * the application context + the display of some choices among which the end
+ * user can choose.
+ *
+ * @see org.argeo.slc.core.execution.PrimitiveSpecAttribute
+ * @see org.argeo.slc.core.execution.RefSpecAttribute
+ * @see org.argeo.slc.core.execution.PrimitiveUtils : this class offers some
+ * helper, among others to cast the various type of primitive attribute.
+ */
public interface ExecutionSpecAttribute {
public Object getValue();
+
public Boolean getIsParameter();
+
+ public Boolean getIsFrozen();
+
+ public Boolean getIsHidden();
+
}