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package org.jooq;

import org.jooq.impl.DSL;

A DDL constraint.

Constraint definitions can be used in DDL statements in order to specify the
constraint, or in some DML statements that reference a given constraint.

Example:

// Assuming import static org.jooq.impl.DSL.*;
using(configuration)
   .alterTable(ACTOR)
   .add(constraint("actor_unique_name")
       .unique(ACTOR.FIRST_NAME, ACTOR.LAST_NAME))
   .execute();

 Instances can be created using DSL.constraint(Name) and overloads. 
Author:
Lukas Eder/**
 * A DDL constraint.
 * <p>
 * Constraint definitions can be used in DDL statements in order to specify the
 * constraint, or in some DML statements that reference a given constraint.
 * <p>
 * <strong>Example:</strong>
 * <p>
 * <code><pre>
 * // Assuming import static org.jooq.impl.DSL.*;
 *
 * using(configuration)
 *    .alterTable(ACTOR)
 *    .add(constraint("actor_unique_name")
 *        .unique(ACTOR.FIRST_NAME, ACTOR.LAST_NAME))
 *    .execute();
 * </pre></code>
 * <p>
 * Instances can be created using {@link DSL#constraint(Name)} and overloads.
 *
 * @author Lukas Eder
 */
public interface Constraint extends FieldOrConstraint {

}