com.caucho.db.table
Class UniqueConstraint

java.lang.Object
  com.caucho.db.table.Constraint
      com.caucho.db.table.UniqueConstraint

Direct Known Subclasses:

PrimaryKeyConstraint

@Module
public class UniqueConstraint
extends Constraint

Validity constraints.

Constructor Summary

UniqueConstraint(Column[] uniqueSet)
Creates a uniqueness constraint.

Method Summary

void	validate(TableIterator[] sourceRows, QueryContext queryContext, DbTransaction xa) validate the constraint.

Methods inherited from class com.caucho.db.table.Constraint

getName, setName

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

UniqueConstraint

public UniqueConstraint(Column[] uniqueSet)

Creates a uniqueness constraint.

Method Detail

validate

public void validate(TableIterator[] sourceRows,
                     QueryContext queryContext,
                     DbTransaction xa)
              throws java.sql.SQLException

validate the constraint.

Overrides:

validate in class Constraint

Throws:

java.sql.SQLException