Examples of org.exolab.castor.persist.spi.KeyGenerator

org.exolab.castor.persist.spi.KeyGenerator
Interface for a key generator. The key generator is used for producing identities for objects before they are created in the database.
All the key generators belonging to the same database share the same non-transactional connection to the database.
The key generator is configured from the mapping file using Bean-like accessor methods. @author Assaf Arkin @author Oleg Nitz @author Bruce Snyder @version $Revision: 7715 $ $Date: 2005-04-25 15:33:21 -0600 (Mon, 25 Apr 2005) $

        buildStatement();
    }
    
    private KeyGenerator getKeyGenerator(final SQLEngine engine,
            final PersistenceFactory factory) throws MappingException {
        KeyGenerator keyGen = null;
        if (engine.getDescriptor().getExtends() == null) {
            KeyGeneratorDescriptor keyGenDesc = 
                new ClassDescriptorJDONature(engine.getDescriptor()).getKeyGeneratorDescriptor();
            if (keyGenDesc != null) {
                FieldDescriptor fldDesc = engine.getDescriptor().getIdentity();
                int[] tempType = new FieldDescriptorJDONature(fldDesc).getSQLType();
                keyGen = keyGenDesc.getKeyGeneratorRegistry().getKeyGenerator(
                        factory, keyGenDesc, (tempType == null) ? 0 : tempType[0]);


                // Does the key generator support the sql type specified in the mapping?
                keyGen.supportsSqlType(tempType[0]);
            }
        }
        return keyGen;
    }

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            final KeyGeneratorDescriptor descriptor, final int sqlType) throws MappingException {
        KeyGeneratorFactory keyGeneratorFactory;
        String keyGeneratorName = descriptor.getName() + " " + sqlType;
        
        // check whether there's already a valid KeyGenerator instance registered.
        KeyGenerator keyGenerator = (KeyGenerator) _keyGenerators.get(keyGeneratorName);


        if (keyGenerator == null) {
            keyGeneratorFactory = KeyGeneratorFactoryRegistry.getKeyGeneratorFactory(
                    descriptor.getKeyGeneratorFactoryName());

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                                         int sqlType )
            throws MappingException
    {
        String keyGenName;
        KeyGeneratorFactory keyGenFactory;
        KeyGenerator keyGen;


        keyGenName = desc.getName() + " " + sqlType;
        keyGen = (KeyGenerator) _keyGens.get( keyGenName );
        if ( keyGen == null ) {
            keyGenFactory = KeyGeneratorFactoryRegistry.getKeyGeneratorFactory(

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                                         LogInterceptor logInterceptor )
            throws MappingException
    {
        String keyGenName;
        KeyGeneratorFactory keyGenFactory;
        KeyGenerator keyGen;


        keyGenName = desc.getName() + " " + sqlType;
        keyGen = (KeyGenerator) _keyGens.get( keyGenName );
        if ( keyGen == null ) {
            keyGenFactory = KeyGeneratorFactoryRegistry.getKeyGeneratorFactory(

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Related Classes of org.exolab.castor.persist.spi.KeyGenerator

org.exolab.castor.jdo.engine.KeyGeneratorRegistry

org.exolab.castor.jdo.engine.SQLStatementCreate

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