org.codehaus.groovy.grails.orm.hibernate.validation
Class UniqueConstraint

java.lang.Object
  org.codehaus.groovy.grails.validation.AbstractConstraint
      org.codehaus.groovy.grails.orm.hibernate.validation.AbstractPersistentConstraint
          org.codehaus.groovy.grails.orm.hibernate.validation.UniqueConstraint

All Implemented Interfaces:

PersistentConstraint, Constraint, ApplicationContextAware, MessageSourceAware

public class UniqueConstraint
extends AbstractPersistentConstraint

A constraint that validates the uniqueness of a property (will query the database during validation process).

Since:

0.4

Author:

Graeme Rocher, Sergey Nebolsin

Field Summary

static String

UNIQUE_CONSTRAINT

Fields inherited from class org.codehaus.groovy.grails.orm.hibernate.validation.AbstractPersistentConstraint

applicationContext

Fields inherited from class org.codehaus.groovy.grails.validation.AbstractConstraint

classShortName, constraintOwningClass, constraintParameter, constraintPropertyName, messageSource

Constructor Summary

UniqueConstraint()

Method Summary

String	getName()
List<String>	getUniquenessGroup()
boolean	isUnique()
boolean	isUniqueWithinGroup()
protected void	processValidate(Object target, Object propertyValue, Errors errors)
void	setParameter(Object constraintParameter) The parameter which the constraint is validated against
boolean	supports(Class type) Returns whether the constraint supports being applied against the specified type;

Methods inherited from class org.codehaus.groovy.grails.orm.hibernate.validation.AbstractPersistentConstraint

getHibernateTemplate, setApplicationContext, validate

Methods inherited from class org.codehaus.groovy.grails.validation.AbstractConstraint

checkState, getDefaultMessage, getPropertyName, rejectValue, rejectValue, rejectValue, rejectValue, rejectValue, rejectValueWithDefaultMessage, setMessageSource, setOwningClass, setPropertyName, skipBlankValues, skipNullValues, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.codehaus.groovy.grails.validation.Constraint

getPropertyName, setMessageSource, setOwningClass, setPropertyName

Field Detail

UNIQUE_CONSTRAINT

public static final String UNIQUE_CONSTRAINT

See Also:

Constant Field Values

Constructor Detail

UniqueConstraint

public UniqueConstraint()

Method Detail

isUnique

public boolean isUnique()

Returns:

Returns the unique.

isUniqueWithinGroup

public boolean isUniqueWithinGroup()

Returns:

Whether the property is unique within a group

setParameter

public void setParameter(Object constraintParameter)

Description copied from interface: Constraint

The parameter which the constraint is validated against

Specified by:

setParameter in interface Constraint

Overrides:

setParameter in class AbstractConstraint

Parameters:

constraintParameter - The constraintParameter to set.

getName

public String getName()

Returns:

The name of the constraint

processValidate

protected void processValidate(Object target,
                               Object propertyValue,
                               Errors errors)

Specified by:

processValidate in class AbstractConstraint

getUniquenessGroup

public List<String> getUniquenessGroup()

supports

public boolean supports(Class type)

Description copied from interface: Constraint

Returns whether the constraint supports being applied against the specified type;

Parameters:

type - The type to support

Returns:

True if the constraint can be applied against the specified type