Java Code Examples for org.hibernate.mapping.Column#isUnique()

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Example 1
Source File: SpannerTableExporter.java    From google-cloud-spanner-hibernate with GNU Lesser General Public License v2.1 5 votes vote down vote up 
/**
 * Processes the columns of the table and creates Unique Constraints for columns
 * annotated with @Column(unique = true).
 */
private static void initializeUniqueConstraints(Table table) {
  Iterator<Column> colIterator = table.getColumnIterator();
  while (colIterator.hasNext()) {
    Column col = colIterator.next();
    if (col.isUnique()) {
      String name = Constraint.generateName("UK_", table, col);
      UniqueKey uk = table.getOrCreateUniqueKey(name);
      uk.addColumn(col);
    }
  }
}