org.odmg
Interface Implementation

All Known Subinterfaces:

ImplementationExt

All Known Implementing Classes:

ImplementationImpl, ImplementationJTAImpl

public interface Implementation

The factory interface for a particular ODMG implementation. Each ODMG implementation will have a class that implements this interface.

Version:

ODMG 3.0

Author:

David Jordan (as Java Editor of the Object Data Management Group)

Method Summary

Transaction	currentTransaction() Get the current Transaction for the thread.
Database	getDatabase(java.lang.Object obj) Get the Database that contains the object obj.
java.lang.String	getObjectId(java.lang.Object obj) Get a String representation of the object's identifier.
DArray	newDArray() Create a new DArray object.
Database	newDatabase() Create a new Database object.
DBag	newDBag() Create a new DBag object.
DList	newDList() Create a new DList object.
DMap	newDMap() Create a new DMap object.
DSet	newDSet() Create a new DSet object.
OQLQuery	newOQLQuery() Create a new OQLQuery object.
Transaction	newTransaction() Create a Transaction object and associate it with the current thread.

Method Detail

newTransaction

Transaction newTransaction()

Create a Transaction object and associate it with the current thread.

Returns:

The newly created Transaction instance.

See Also:

Transaction

currentTransaction

Transaction currentTransaction()

Get the current Transaction for the thread.

Returns:

The current Transaction object or null if there is none.

See Also:

Transaction

newDatabase

Database newDatabase()

Create a new Database object.

Returns:

The new Database object.

See Also:

Database

newOQLQuery

OQLQuery newOQLQuery()

Create a new OQLQuery object.

Returns:

The new OQLQuery object.

See Also:

OQLQuery

newDList

DList newDList()

Create a new DList object.

Returns:

The new DList object.

See Also:

DList

newDBag

DBag newDBag()

Create a new DBag object.

Returns:

The new DBag object.

See Also:

DBag

newDSet

DSet newDSet()

Create a new DSet object.

Returns:

The new DSet object.

See Also:

DSet

newDArray

DArray newDArray()

Create a new DArray object.

Returns:

The new DArray object.

See Also:

DArray

newDMap

DMap newDMap()

Create a new DMap object.

Returns:

The new DMap object.

See Also:

DMap

getObjectId

java.lang.String getObjectId(java.lang.Object obj)

Get a String representation of the object's identifier.

Parameters:

obj - The object whose identifier is being accessed.

Returns:

The object's identifier in the form of a String

getDatabase

Database getDatabase(java.lang.Object obj)

Get the Database that contains the object obj.

Parameters:

obj - The object.

Returns:

The Database that contains the object.