Examples with Constraint org.hibernate.mapping.Constraint used on opensource projects

Example 1 with Constraint

use of org.hibernate.mapping.Constraint in project hibernate-orm by hibernate.

the class AbstractSchemaMigrator method applyUniqueKeys.

protected void applyUniqueKeys(Table table, TableInformation tableInfo, Dialect dialect, Metadata metadata, Formatter formatter, ExecutionOptions options, GenerationTarget... targets) {
    if (uniqueConstraintStrategy == null) {
        uniqueConstraintStrategy = determineUniqueConstraintSchemaUpdateStrategy(metadata);
    }
    if (uniqueConstraintStrategy != UniqueConstraintSchemaUpdateStrategy.SKIP) {
        final Exporter<Constraint> exporter = dialect.getUniqueKeyExporter();
        final Iterator ukItr = table.getUniqueKeyIterator();
        while (ukItr.hasNext()) {
            final UniqueKey uniqueKey = (UniqueKey) ukItr.next();
            // Skip if index already exists. Most of the time, this
            // won't work since most Dialects use Constraints. However,
            // keep it for the few that do use Indexes.
            IndexInformation indexInfo = null;
            if (tableInfo != null && StringHelper.isNotEmpty(uniqueKey.getName())) {
                indexInfo = tableInfo.getIndex(Identifier.toIdentifier(uniqueKey.getName()));
            }
            if (indexInfo == null) {
                if (uniqueConstraintStrategy == UniqueConstraintSchemaUpdateStrategy.DROP_RECREATE_QUIETLY) {
                    applySqlStrings(true, exporter.getSqlDropStrings(uniqueKey, metadata), formatter, options, targets);
                }
                applySqlStrings(true, exporter.getSqlCreateStrings(uniqueKey, metadata), formatter, options, targets);
            }
        }
    }
}