Package org.apache.torque
package org.apache.torque
Torque is an object-relational mapper for Java. In other words, Torque lets you access and
manipulate data in a relational database using java objects. Unlike most other
object-relational mappers, Torque does not use reflection to access user-provided classes,
but it generates the necessary classes (including the Data Objects) from an XML schema
describing the database layout (which can either be written by hand or generated from an
existing database). The XML schema can also be used to generate and execute a SQL script
which creates all the tables in the database.
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KlasseBeschreibungThe metadata of a column (or pseudocolumn) in a database.An implementation of the column interface.This exception is thrown if a database operation violates a database constraint, e.g. a foreign key constraint, a unique constraint or a not-null constraint.Bundles all information about a database.This exception is thrown if the database detects a deadlock.This exception indicates that no rows were returned but at least one should have been returned.This exception is thrown if the database detects that a row in a table with optimistic locking was updated by another process.This exception indicates that more rows were returned than expected.A static facade wrapper around the Torque implementation (which is in
TorqueInstance
).The base class of all checked exceptions thrown by Torque.The core of Torque's implementation.This is the base class of all non-checked exceptions in Torque.