Examples of org.exolab.castor.mapping.AccessMode

org.exolab.castor.mapping.AccessMode
The access mode for a class. This object is used by class descriptors to specify the access mode for a class.
In persistent storage each class is defined as having one of three access modes:
- Read only
- Shared (aka optimistic locking)
- Exclusive (aka pessimistic locking)
- DbLocked (database lock)
Transactions typically access objects based on the specified access mode. A transaction may be requested to access any object as read only or exclusive, but may not access exclusive objects as shared. @author Assaf Arkin @author Ralf Joachim @version $Revision: 6907 $ $Date: 2006-04-25 15:08:23 -0600 (Tue, 25 Apr 2006) $

            throw new ClassNotPersistenceCapableException(Messages.format(
                    "persist.classNotPersistenceCapable", oid.getName()));
        }


        ClassMolder molder = oid.getMolder();
        AccessMode accessMode = molder.getAccessMode(suggestedAccessMode);


        boolean succeed = false;
        ObjectLock lock = null;
        try {
            short action;

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        OID oid = locker.getOID();
        
        Object[] cachedFieldValues = locker.getObject(tx);
        proposedObject.setFields(cachedFieldValues);
        
        AccessMode accessMode = getAccessMode(suggestedAccessMode);


        // load the fields from the persistent storage if the cache is empty
        // or the access mode is DBLOCKED (thus guaranteeing that a lock at the
        // database level will be created)
        if (!proposedObject.isFieldsSet() || accessMode == AccessMode.DbLocked) {

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            // set the field values to 'null'. this indicates that the field values 
            // should be loaded from the persistence storage
            proposedObject.setFields(null);
        }
        
        AccessMode accessMode = getAccessMode(suggestedAccessMode);


        // load the fields from the persistent storage if the cache is empty
        // or the access mode is DBLOCKED (thus guaranteeing that a lock at the
        // database level will be created)
        if (!proposedObject.isFieldsSet() || accessMode == AccessMode.DbLocked) {

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    public void mold(final TransactionContext tx, final DepositBox locker,
            final ProposedEntity proposedObject, final AccessMode suggestedAccessMode)
    throws PersistenceException {
        OID oid = locker.getOID();
        AccessMode accessMode = getAccessMode(suggestedAccessMode);
        
        resetResolvers();
        
        // set the timeStamp of the data object to locker's timestamp
        if (proposedObject.getEntity() instanceof TimeStampable) {

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     * @return boolean true if the updating object should be created
     */
    public boolean update(final TransactionContext tx, final OID oid, final DepositBox locker,
            final Object object, final AccessMode suggestedAccessMode) throws PersistenceException {


        AccessMode accessMode = getAccessMode(suggestedAccessMode);


        resetResolvers();


        Object[] fields = locker.getObject(tx);

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    }


    public PersistenceQuery createQuery(final QueryExpression query, final Class[] types,
                                        final AccessMode accessMode)
    throws QueryException {
        AccessMode mode = (accessMode != null)
                        ? accessMode
                        : new ClassDescriptorJDONature(_clsDesc).getAccessMode();
        String sql = query.getStatement(mode == AccessMode.DbLocked);
        
        if (LOG.isDebugEnabled()) {

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            final AccessMode suggestedAccessMode)
    throws PersistenceException {


        Object objectInTx;
        OID oid;
        AccessMode accessMode;


        if (identity == null) {
            throw new PersistenceException("Identities can't be null!");
        }

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            final QueryResults results)
    throws PersistenceException {
        
        Object objectInTx;
        OID oid;
        AccessMode accessMode;


        ClassMolder molder = proposedObject.getActualClassMolder();
        LockEngine engine = molder.getLockEngine();


        if (identity == null) {

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            Object identity, AccessMode suggestedAccessMode )
            throws ObjectNotFoundException, LockNotGrantedException, PersistenceException {


        ObjectEntry entry = null;
        OID         oid;
        AccessMode  accessMode;


        if ( identity == null )
            throw new PersistenceException("Identities can't be null!");


        oid = new OID( engine, molder, identity );

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        oid = new OID( engine, molder, identity );


        if ( objectToBeLoaded != null
            && !molder.getJavaClass( _db.getClassLoader() ).isAssignableFrom( objectToBeLoaded.getClass() ) )
            throw new PersistenceException( Messages.format("persist.typeMismatch", molder.getName(), objectToBeLoaded.getClass() ) );
        AccessMode accessMode = molder.getAccessMode( suggestedAccessMode );
        if ( accessMode == AccessMode.ReadOnly )
            entry = getReadOnlyObjectEntry( oid );
        if ( entry == null )
            entry = getObjectEntry( engine, oid );
        if ( entry != null ) {

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Related Classes of org.exolab.castor.mapping.AccessMode

org.castor.persist.AbstractTransactionContext

org.exolab.castor.jdo.engine.DatabaseImpl

org.exolab.castor.jdo.engine.SQLEngine

org.exolab.castor.persist.ClassMolder

org.exolab.castor.persist.LockEngine

org.exolab.castor.persist.TransactionContext

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