Package ptolemy.actor.gt

Class HierarchyFlatteningAttribute

    • Constructor Detail

      • HierarchyFlatteningAttribute

        public HierarchyFlatteningAttribute​(NamedObj container,
                                    java.lang.String name)
                             throws IllegalActionException,
                                    NameDuplicationException
        Construct an attribute with the given name contained by the specified entity. The container argument must not be null, or a NullPointerException will be thrown. This attribute will use the workspace of the container for synchronization and version counts. If the name argument is null, then the name is set to the empty string. Increment the version of the workspace.
        Parameters:
        container - The container.
        name - The name of this attribute.
        Throws:
        IllegalActionException - If the attribute is not of an acceptable class for the container, or if the name contains a period.
        NameDuplicationException - If the name coincides with an attribute already in the container.

    • Method Detail

      • setContainer

        public void setContainer​(NamedObj container)
                  throws IllegalActionException,
                         NameDuplicationException
        Specify the container NamedObj, adding this attribute to the list of attributes in the container. If the container already contains an attribute with the same name, then throw an exception and do not make any changes. Similarly, if the container is not in the same workspace as this attribute, throw an exception. If this attribute is already contained by the NamedObj, do nothing. If the attribute already has a container, remove this attribute from its attribute list first. Otherwise, remove it from the directory of the workspace, if it is there. If the argument is null, then remove it from its container. It is not added to the workspace directory, so this could result in this object being garbage collected. Note that since an Attribute is a NamedObj, it can itself have attributes. However, recursive containment is not allowed, where an attribute is an attribute of itself, or indirectly of any attribute it contains. This method is write-synchronized on the workspace and increments its version number.

        Subclasses may constrain the type of container by overriding setContainer(NamedObj).

        Overrides:
        setContainer in class Variable
        Parameters:
        container - The container to attach this attribute to..
        Throws:
        IllegalActionException - If this attribute is not of the expected class for the container, or it has no name, or the attribute and container are not in the same workspace, or the proposed container would result in recursive containment.
        NameDuplicationException - If the container already has an attribute with the name of this attribute.
        See Also:
        Attribute.getContainer()

      • validate

        public java.util.Collection validate()
                              throws IllegalActionException
        If this variable is not lazy (the default) then evaluate the expression contained in this variable, and notify any value dependents. If those are not lazy, then they too will be evaluated. Also, if the variable is not lazy, then notify its container, if there is one, by calling its attributeChanged() method.

        If this variable is lazy, then mark this variable and any of its value dependents as needing evaluation and for any value dependents that are not lazy, evaluate them. Note that if there are no value dependents, or if they are all lazy, then this will not result in evaluation of this variable, and hence will not ensure that the expression giving its value is valid. Call getToken() or getType() to accomplish that.

        Specified by:
        validate in interface Settable
        Overrides:
        validate in class Variable
        Returns:
        The current list of value listeners, which are evaluated as a consequence of this call to validate().
        Throws:
        IllegalActionException - If this variable or a variable dependent on this variable cannot be evaluated (and is not lazy) and the model error handler throws an exception. Also thrown if the change is not acceptable to the container.