org.codehaus.groovy.grails.validation
Class ValidatorConstraint
java.lang.Object
org.codehaus.groovy.grails.validation.AbstractConstraint
org.codehaus.groovy.grails.validation.ValidatorConstraint
- All Implemented Interfaces:
- Constraint
class ValidatorConstraint
- extends AbstractConstraint
A constraint class that validates using a user-supplied closure.
The Closure will receive one or two parameters containing the new value of the property and the object
on which the validation is being performed. The value is always the first parameterm and the object is the second.
These parameters must be type compatible with the value of the property and constrained class.
The Closure can return any of:
- NULL to indicate success
- true to indicate success
- false to indicate a failure, with the default failure message
- a string to indicate a failure with the specific error code which will be appended to the
prefix for the constrained class and property i.e. classname.propertyname.stringfromclosurehere
- a list containing an error code and any other arguments for the error message. The error code will
be appended to the standard classname.propertyname prefix and the arguments made available to the
error message as parameters numbered 3 onwards.
- Since:
- 0.4
Created: Jan 19, 2007
Time: 8:44:39 AM
- Author:
- Marc Palmer
Methods inherited from class org.codehaus.groovy.grails.validation.AbstractConstraint |
checkState, getDefaultMessage, getPropertyName, rejectValue, rejectValue, rejectValue, rejectValue, rejectValue, rejectValueWithDefaultMessage, setMessageSource, setOwningClass, setPropertyName, toString, validate |
ValidatorConstraint
ValidatorConstraint()
skipNullValues
protected boolean skipNullValues()
- Overrides:
skipNullValues
in class AbstractConstraint
processValidate
protected void processValidate(Object target,
Object propertyValue,
Errors errors)
- Specified by:
processValidate
in class AbstractConstraint
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
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
Copyright (c) 2005-2006 The Grails project