XEO Java API - boObject

The boObject class represents a instance of a XEO Model and has several methods to retrieve handlers to manipulate attribute values, to retrieve handlers to query the XEO Model definition as well as methods to handle the instance's life cycle and behavior.

Object Properties

Methods in this category allow to retrieve properties of the instance.

Method Name	Description	Parameters	Return type
getBoui	Retrieves the BOUI (Business Object Unique Identifier)	-	long
getName	Retrieve the name of the Object Model of this instance	-	String
getCardID	Retrieves the CardID of the boObject	-	StringBuffer

Dealing with Attributes

Methods in this category allow you to retrieve handlers to interact with attributes of the instance.

Method Name	Description	Parameters	Return type	Notes
getAttribute	Retrieves an attributeHandler for the attribute passed as a parameter	String name	AttributeHandler
getAttributes	Retrieves an array of attributeHandlers with all non-collection attributes	-	boAttributeArray	The boAttributeArray class is a wrapper around an array to keep attribute handlers
getAttributes	Retrieves an array of attributes with all attributes of the type passed as a parameter	byte type	boAttributeArray	* See table of convertions in class boDefAttribute.java (VALUE_UNKNOWN=0; public static final byte VALUE_CHAR=9; public static final byte VALUE_BOOLEAN=1; public static final byte VALUE_DURATION=2; public static final byte VALUE_CURRENCY=3; public static final byte VALUE_NUMBER=4; public static final byte VALUE_DATETIME=5; etc...)
getAllAttributes	Retrieves a handler to all (collection and non-collection) attributes	-	boAttributeArray
getBridge	Retrieves a bridgeHandler for a collection attribute given a name passed as parameter	String name	bridgeHandler
getBridges	Retrieves an array of bridgeHandlers with all collection attributes of the instances	-	boAttributeArray
getAllAttributes	Retrieves an array will all attributes (collection and non-collection	-	boAttributeArray

Dealing with Definitions

These methods allow to retrieve information from XEO Model definition of the given instance.

Method Name	Description	Parameters	Return Type
getBoDefinition	Returns a wrapper around the Object Model definition, so that the definition can be	-	boDefHandler
getMenuMethods	Returns an array with the definition of all methods defined in the current object model	-	boDefMethod[]
getToolBarMethods	Same as above	-	boDefMethod[]
getToolbarMethodNames	Retrieves the name of the toolbar methods	-	String[]

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Object Life Cycle

Method Name	Description	Parameters	Return type	Notes
update	Saves any changes to the instance persintently -	-	void	If there are any objects in this instance's update queue, their update method will also be called
destroy	Deletes the current instance (if there are references to this object it will throw an exception)	-	void
destroyForce	Forces the deletion of the current instance (even if there're references to it)	-	void
getUpdateQueue	Retrieves the update queue of the current instance. The update queue	-	boObjectUpdateQueue
exists	Checks if the instance is saved in the database or only exists in memory	-	boolean	Returns true if object is saved in the database and false otherwise
clone	Creates a copy of the current instance	-	boObject	Does not duplicate iFile attributes, rather it makes a reference to the iFile of the original boObject instance.
isChanged	Checks if the object was changed since it was loaded	-	boolean
setDisabled	Disables the object (an eventually all of its children)	boolean deep	void	If the deep parameter is true it will disable all objects related to this instance.
isDisabled	Checks whether this is instance is disabled or not	-	boolean

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Object Behavior

Methods in this group regard object behavior. With these methods you can check if the instance is valid or add error messages (which will be displayed in the instance's edit viewer) or check for existing error messages. Error messages can be generically added to the instance or to a specific attribute.

Method Name	Description	Parameters	Return type
addErrorMessage	Adds an error message to the instance	String message	void
addErrorMessage	Adds an error message associated to a given attribute	AttributeHandler, String name	void
addAdvertiseMessage	Not implemented in viewers	XXX
addAdvertiseMessage	For attribute - Not implemented	XXX
haveErrors	Checks whether the instance has an error or not (object errors or attribute errors)	-	boolean
haveObjectErrors	Checks whether the instance has an error (object error only)	-	boolean
haveAttributeErrors	Checks whether the instance has any attribute error	-	boolean
getObjectErrors	Retrieves the list of errors associated to the instance (object errors)	-	ArrayList
getAttributeErrors	Retrieves the list of errors associated with attributes of the instance	-	Hashtable
clearErrors	Clear the instance of any error (object or attribute error)	-	void
clearObjectErrors	Clears the instance of any object error	-	void
clearAttributeErrors	Clears the instance of any attribute error	-	void
valid	Checks whether or not the instance is valid (has no errors)	-	boolean

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References

Methods in this category are provided to deal with references to and from this instance.

Method Name	Description	Parameters	Return type
getParent	Retrieves the boObject instance which is the parent of this instance (or null if it does not have one)	-	boObject
getParents	Retrieves the list of boObject instance which are parents of this instance (only if Object Model allows multi-parent	-	boObject[]
removeParent	Removes a given instance from being the current instance's parent	boObject parent, boolean orphanRelation	void
addParent	Adds a new parent instance to the current instance (if the instance already has a parent, it's replaced by the new one, if the instance supports multi-parent, the new parent is added)	boObject parent	void
getReferencesObjects	Retrieves an array of objects which this instances makes a reference to	-	boObject[]
getReferencedByObjects	Retrieves an array of object which reference this instance	-	boObject[]

Topic revision: r10 - 2011-04-04 - NicolauGrosskopf

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