org.hibernate.metamodel.spi.relational.UniqueKey

gistfile1.txt

public class UniqueKey extends AbstractConstraint implements Constraint {
	private static final String GENERATED_NAME_PREFIX = "UK";

	protected UniqueKey(Table table, String name) {
		super( table, name );
	}

	@Override
	public String getExportIdentifier() {
		StringBuilder sb = new StringBuilder( getTable().getLoggableValueQualifier() );
		sb.append( ".UK" );
		for ( Column column : getColumns() ) {
			sb.append( '_' ).append( column.getColumnName().getName() );
		}
		return sb.toString();
	}

	@Override
<<<<<<< HEAD
	public String[] sqlCreateStrings(Dialect dialect) {
		String s = dialect.getUniqueDelegate().getAlterTableToAddUniqueKeyCommand( this );
		return StringHelper.toArrayElement( s );
=======
	protected String getGeneratedNamePrefix() {
		return GENERATED_NAME_PREFIX;
	}

	@Override
    public boolean isCreationVetoed(Dialect dialect) {
		if ( dialect.supportsNotNullUnique() ) {
			return false;
		}

		for ( Column column : getColumns() ) {
			if ( column.isNullable() ) {
				return true;
			}
		}
		return false;
>>>>>>> HHH-7092 : Create default name for foreign and unique key constraints
	}

	@Override
	public String[] sqlDropStrings(Dialect dialect) {
		String s = dialect.getUniqueDelegate().getAlterTableToDropUniqueKeyCommand( this );
		return StringHelper.toArrayElement( s );
	}

	@Override
<<<<<<< HEAD
    protected String sqlConstraintStringInAlterTable(Dialect dialect) {
		// not used
		return "";
=======
    public String sqlConstraintStringInAlterTable(Dialect dialect) {
		StringBuilder buf = new StringBuilder(
				dialect.getAddUniqueConstraintString( getOrGenerateName() )
		).append( '(' );
		boolean nullable = false;
		boolean first = true;
		for ( Column column : getColumns() ) {
			if ( first ) {
				first = false;
			}
			else {
				buf.append( ", " );
			}
			if ( !nullable && column.isNullable() ) {
				nullable = true;
			}
			buf.append( column.getColumnName().encloseInQuotesIfQuoted( dialect ) );
		}
		return !nullable || dialect.supportsNotNullUnique() ? buf.append( ')' ).toString() : null;
>>>>>>> HHH-7092 : Create default name for foreign and unique key constraints
	}
}