EOEntityClassDescription

Inherits from:

com.webobjects.eocontrol.EOClassDescription

Package:

com.webobjects.eoaccess

Class Description

EOEntityClassDescription is the subclass of the control layer's EOClassDescription. The EOClassDescription class provides a mechanism for extending classes by giving them access to metadata not available in the run-time system. EOEntityClassDescription extends the behavior of enterprise objects by deriving information about them (such as NULL constraints and referential integrity rules) from an associated EOModel. For detailed information on the methods, see the EOClassDescription class specification.

In the typical scenario in which an enterprise object has a corresponding model file, the first time a particular operation is performed on a class (such as validating a value), an ClassDescriptionNeeded... notification (either an ClassDescriptionNeededForClassNotification or an ClassDescriptionNeededForEntityNameNotification) is broadcast. When an EOModel object receives this notification it registers the metadata (class description) for the EOEntity on which the enterprise object is based. This class description is used from that point on.

Constructors

EOEntityClassDescription

public EOEntityClassDescription(EOEntity entity)

See Also: entity

Instance Methods

allAttributeKeys

public NSArray allAttributeKeys()

allPropertyKeys

public NSArray allPropertyKeys()

allToManyRelationshipKeys

public NSArray allToManyRelationshipKeys()

allToOneRelationshipKeys

public NSArray allToOneRelationshipKeys()

attributeKeys

public NSArray attributeKeys()

awakeObjectFromInsertion

public void awakeObjectFromInsertion( com.webobjects.eocontrol.EOEnterpriseObject anEOEnterpriseObject, com.webobjects.eocontrol.EOEditingContext anEOEditingContext)

classDescriptionForDestinationKey

public com.webobjects.eocontrol.EOClassDescription classDescriptionForDestinationKey(String aString)

clientAttributeKeys

public NSArray clientAttributeKeys()

clientToManyRelationshipKeys

public NSArray clientToManyRelationshipKeys()

clientToOneRelationshipKeys

public NSArray clientToOneRelationshipKeys()

createInstanceWithEditingContext

public com.webobjects.eocontrol.EOEnterpriseObject createInstanceWithEditingContext( com.webobjects.eocontrol.EOEditingContext anEOEditingContext, com.webobjects.eocontrol.EOGlobalID anEOGlobalID)

defaultFormatterForKey

public java.text.Format defaultFormatterForKey(String aString)

deleteRuleForRelationshipKey

public int deleteRuleForRelationshipKey(String aString)

entity

public EOEntity entity()

See Also: EOEntityClassDescription

Instance Methods

allAttributeKeys

public NSArray allAttributeKeys()

allPropertyKeys

public NSArray allPropertyKeys()

allToManyRelationshipKeys

public NSArray allToManyRelationshipKeys()

allToOneRelationshipKeys

public NSArray allToOneRelationshipKeys()

attributeKeys

public NSArray attributeKeys()

awakeObjectFromInsertion

public void awakeObjectFromInsertion( com.webobjects.eocontrol.EOEnterpriseObject anEOEnterpriseObject, com.webobjects.eocontrol.EOEditingContext anEOEditingContext)

classDescriptionForDestinationKey

public com.webobjects.eocontrol.EOClassDescription classDescriptionForDestinationKey(String aString)

clientAttributeKeys

public NSArray clientAttributeKeys()

clientToManyRelationshipKeys

public NSArray clientToManyRelationshipKeys()

clientToOneRelationshipKeys

public NSArray clientToOneRelationshipKeys()

createInstanceWithEditingContext

public com.webobjects.eocontrol.EOEnterpriseObject createInstanceWithEditingContext( com.webobjects.eocontrol.EOEditingContext anEOEditingContext, com.webobjects.eocontrol.EOGlobalID anEOGlobalID)

defaultFormatterForKey

public java.text.Format defaultFormatterForKey(String aString)

deleteRuleForRelationshipKey

public int deleteRuleForRelationshipKey(String aString)

entity

public EOEntity entity()

entityName

public String entityName()

fetchSpecificationNamed

public com.webobjects.eocontrol.EOFetchSpecification fetchSpecificationNamed(String aString)

inverseForRelationshipKey

public String inverseForRelationshipKey(String aString)

ownsDestinationObjectsForRelationshipKey

public boolean ownsDestinationObjectsForRelationshipKey(String aString)

readResolve

protected Object readResolve()

superClassDescription

public com.webobjects.eocontrol.EOClassDescription superClassDescription()

toManyRelationshipKeys

public NSArray toManyRelationshipKeys()

toOneRelationshipKeys

public NSArray toOneRelationshipKeys()

validateObjectForDelete

public void validateObjectForDelete(com.webobjects.eocontrol.EOEnterpriseObject anEOEnterpriseObject)

validateObjectForSave

public Exception validateObjectForSave(Object anObject)

validateValueForKey

public Object validateValueForKey( Object anObject, String aString)

© 2001 Apple Computer, Inc. (Last Published April 13, 2001)