org.openxava.calculators
Class SequenceCalculator

java.lang.Object
  org.openxava.calculators.SequenceCalculator

All Implemented Interfaces:

java.io.Serializable, ICalculator, IHibernateIdGeneratorCalculator

public class SequenceCalculator
extends java.lang.Object
implements IHibernateIdGeneratorCalculator, ICalculator

To use sequence database id generation.

An example of use:

  <property name="id" key="true" type="int" hidden="true">
                <default-value-calculator class="org.openxava.calculators.SequenceCalculator" on-create="true">
                        <set property="sequence" value="XAVATEST_SIZE_ID_SEQ"/>
                </default-value-calculator>
        </property>
  

It does not work with EJB2. It works with Hibernate and EJB3 JPA.

Author:

Javier Paniza

See Also:

Serialized Form

Constructor Summary

SequenceCalculator()

Method Summary

java.lang.Object	calculate()
java.lang.String	getSequence()
java.lang.String	hbmGeneratorCode() Returns the xml code to insert inside 'id' element in .hbml file.
void	setSequence(java.lang.String sequence)

Methods inherited from class java.lang.Object

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

Constructor Detail

SequenceCalculator

public SequenceCalculator()

Method Detail

hbmGeneratorCode

public java.lang.String hbmGeneratorCode()

Description copied from interface: IHibernateIdGeneratorCalculator

Returns the xml code to insert inside 'id' element in .hbml file.

Specified by:

hbmGeneratorCode in interface IHibernateIdGeneratorCalculator

getSequence

public java.lang.String getSequence()

setSequence

public void setSequence(java.lang.String sequence)

calculate

public java.lang.Object calculate()
                           throws java.lang.Exception

Specified by:

calculate in interface ICalculator

Throws:

java.lang.Exception