Package de.uni_trier.wi2.procake.data.model.base

Interface UnionClass

All Superinterfaces:

DataClass, PropertyHandler

All Known Implementing Classes:

UnionClassImpl

public interface UnionClass
extends DataClass

Union Class is a special class, used to improve and simplify the design of the data model. Its goal is not the instantiation of corresponding data objects, but the usage of several data objects with different data classes as possible attribute values. Such a union can be used in one attribute or as base class in collections. For example, a SetClass that should contain elements of AggregateObjects as well as IntegerObjects. The base class that has to be specified in the set would be the common parent class of both namely DataClass. But if this class would be used, also any data object of any data class could be an element of the collection. This problem is solved with a Union Class that combines the Aggregate Class and the Integer Class into a new class that can be used as base class.

It is not possible to instantiate this class.

Author:

Rainer Maximini

Field Summary

Fields

Modifier and Type	Field	Description
static final String	CLASS_NAME	The name of the class.
static final String	LOG_EQUAL_ELEMENTCLASS
static final String	LOG_MISSING_ELEMENTCLASS

Fields inherited from interface de.uni_trier.wi2.procake.data.model.DataClass

LOG_ABSTRACT_CLASS_NOT_INSTANTIABLE, LOG_ABSTRACT_SYSTEM_SUBCLASS_CREATION_FAILED, LOG_CLASS_NOT_EDITABLE, LOG_CLASS_NOT_INSTANTIABLE, LOG_EDITABLE_CLASS_NOT_INSTANTIABLE, LOG_FINISH_EDIT_FAILED, LOG_GET_SUPERCLASSES_FAILED, LOG_SUBCLASS_CREATION_FAILED

Method Summary

Modifier and Type	Method	Description
void	add(DataClass dataClass)	Adds an additional DataClass to the list of data classes
DataClass[]	getClasses()	getClasses.
boolean	hasClass(DataClass dataClass)	Checks if the given DataClass dataClass is a member of the union.
void	remove(DataClass dataClass)	Removes a DataClass from the list of data classes.

Methods inherited from interface de.uni_trier.wi2.procake.data.model.DataClass

addSubclass, checkInstantiability, createSubclass, finishEditing, getModel, getName, getObjectClass, getSubClasses, getSuperClass, getSuperClasses, getSystemClassName, getSystemSuperClass, includeClass, isAbstract, isAggregate, isAtomic, isBoolean, isByteArray, isCake2DataReference, isChronologic, isCollection, isControlflowItem, isDataflowWrapper, isDate, isDouble, isEditable, isInstantiable, isInteger, isInterval, isList, isNESTConstraintEdge, isNESTControlflowEdge, isNESTControlflowNode, isNESTDataflowEdge, isNESTDataNode, isNESTEdge, isNESTGraph, isNESTGraphItem, isNESTNode, isNESTPartOfEdge, isNESTSequenceNode, isNESTSequentialWorkflow, isNESTSubWorkflowNode, isNESTTaskNode, isNESTWorkflow, isNESTWorkflowNode, isNode, isNumeric, isParentItem, isSequence, isSet, isString, isSubclassOf, isSubWorkflow, isSystemClass, isTask, isTime, isTimestamp, isUnion, isURI, isVoid, isWorkflow, isWorkflowItem, newObject, removeSubclass, setAbstract, setName

Methods inherited from interface de.uni_trier.wi2.procake.data.PropertyHandler

addProperty, addProperty, getAllProperties, getAllPropertyNodes, getProperty, getPropertyNames, getPropertyNode, getPropertyRootNode, hasProperties, removeProperty, setPropertyRootNode

Field Details

CLASS_NAME

static final String CLASS_NAME

The name of the class. This name should be used in Model.getClass(String) to receive the system class. The value is * "Union" .

See Also:

• Constant Field Values

LOG_EQUAL_ELEMENTCLASS

static final String LOG_EQUAL_ELEMENTCLASS

See Also:

• Constant Field Values

LOG_MISSING_ELEMENTCLASS

static final String LOG_MISSING_ELEMENTCLASS

See Also:

• Constant Field Values

Method Details

add

void add(DataClass dataClass)
  throws IllegalEditException

Adds an additional DataClass to the list of data classes

Parameters:

dataClass - The new data class. If the data class is already in the list the new one will be ignored.

Throws:

IllegalEditException

getClasses

DataClass[] getClasses()

getClasses.

Returns:

an array of all DataClasses.

See Also:

• add(DataClass)
• remove(DataClass)

hasClass

boolean hasClass(DataClass dataClass)

Checks if the given DataClass dataClass is a member of the union.

Parameters:

dataClass - The DataClass that should be checked.

Returns:

true if the dataClass is a member of the union.

remove

void remove(DataClass dataClass)
     throws IllegalEditException

Removes a DataClass from the list of data classes. If the data class is not in the list of data classes nothing will happen.

Parameters:

dataClass - The data class that should be removed.

Throws:

IllegalEditException