How to use

addConstraint

method

in

org.apache.hadoop.hbase.constraint.Constraints

/**
 * Add a {@link Constraint} to the table with the given configuration
 * <p>
 * Each constraint, when added to the table, will have a specific priority,
 * dictating the order in which the {@link Constraint} will be run. A
 * {@link Constraint} added will run on the regionserver before those added to
 * the {@link HTableDescriptor} later.
 * 
 * @param desc
 *          table descriptor to the constraint to
 * @param constraint
 *          to be added
 * @param conf
 *          configuration associated with the constraint
 * @throws IOException
 *           if any constraint could not be deserialized. Assumes if 1
 *           constraint is not loaded properly, something has gone terribly
 *           wrong and that all constraints need to be enforced.
 */
public static void add(HTableDescriptor desc,
  Class<? extends Constraint> constraint, Configuration conf)
  throws IOException {
 enable(desc);
 long priority = getNextPriority(desc);
 addConstraint(desc, constraint, conf, priority++);
 updateLatestPriority(desc, priority);
}

addConstraint(desc, clazz, null, priority++);

long priority = getNextPriority(desc);
for (Pair<Class<? extends Constraint>, Configuration> pair : constraints) {
 addConstraint(desc, pair.getFirst(), pair.getSecond(), priority++);

/**
 * Add a {@link Constraint} to the table with the given configuration
 * <p>
 * Each constraint, when added to the table, will have a specific priority,
 * dictating the order in which the {@link Constraint} will be run. A
 * {@link Constraint} added will run on the regionserver before those added to
 * the {@link HTableDescriptor} later.
 * 
 * @param desc
 *          table descriptor to the constraint to
 * @param constraint
 *          to be added
 * @param conf
 *          configuration associated with the constraint
 * @throws IOException
 *           if any constraint could not be deserialized. Assumes if 1
 *           constraint is not loaded properly, something has gone terribly
 *           wrong and that all constraints need to be enforced.
 */
public static void add(HTableDescriptor desc,
  Class<? extends Constraint> constraint, Configuration conf)
  throws IOException {
 enable(desc);
 long priority = getNextPriority(desc);
 addConstraint(desc, constraint, conf, priority++);
 updateLatestPriority(desc, priority);
}

/**
 * Add a {@link Constraint} to the table with the given configuration
 * <p>
 * Each constraint, when added to the table, will have a specific priority,
 * dictating the order in which the {@link Constraint} will be run. A
 * {@link Constraint} added will run on the regionserver before those added to
 * the {@link HTableDescriptor} later.
 * 
 * @param desc
 *          table descriptor to the constraint to
 * @param constraint
 *          to be added
 * @param conf
 *          configuration associated with the constraint
 * @throws IOException
 *           if any constraint could not be deserialized. Assumes if 1
 *           constraint is not loaded properly, something has gone terribly
 *           wrong and that all constraints need to be enforced.
 */
public static void add(HTableDescriptor desc,
  Class<? extends Constraint> constraint, Configuration conf)
  throws IOException {
 enable(desc);
 long priority = getNextPriority(desc);
 addConstraint(desc, constraint, conf, priority++);
 updateLatestPriority(desc, priority);
}

addConstraint(desc, clazz, null, priority++);

addConstraint(desc, clazz, null, priority++);

long priority = getNextPriority(desc);
for (Pair<Class<? extends Constraint>, Configuration> pair : constraints) {
 addConstraint(desc, pair.getFirst(), pair.getSecond(), priority++);

long priority = getNextPriority(desc);
for (Pair<Class<? extends Constraint>, Configuration> pair : constraints) {
 addConstraint(desc, pair.getFirst(), pair.getSecond(), priority++);