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org.codehaus.groovy.grails.validation
[Java] Interface Constraint

org.springframework.beans.factory.Aware
  org.codehaus.groovy.grails.validation.Constraint
All Superinterfaces:
org.springframework.beans.factory.Aware
public interface Constraint
extends org.springframework.context.MessageSourceAware

Defines a validatable constraint.

Authors:
Graeme Rocher

Method Summary
java.lang.String getName()

@return The name of the constraint
java.lang.Object getParameter()

java.lang.String getPropertyName()

@return The property name of the constraint
boolean isValid()

Return whether the constraint is valid for the owning class
void setMessageSource(org.springframework.context.MessageSource source)

The message source to evaluate the default messages from
void setOwningClass(java.lang.Class owningClass)

The class the constraint applies to
void setParameter(java.lang.Object parameter)

The parameter which the constraint is validated against.
void setPropertyName(java.lang.String propertyName)

The name of the property the constraint applies to
boolean supports(java.lang.Class type)

Returns whether the constraint supports being applied against the specified type;
void validate(java.lang.Object target, java.lang.Object propertyValue, org.springframework.validation.Errors errors)

Validate this constraint against a property value.

 
Methods inherited from interface org.springframework.context.MessageSourceAware
org.springframework.context.MessageSourceAware#setMessageSource(org.springframework.context.MessageSource)
 
Methods inherited from class java.lang.Object
java.lang.Object#wait(), java.lang.Object#wait(long), java.lang.Object#wait(long, int), java.lang.Object#equals(java.lang.Object), java.lang.Object#toString(), java.lang.Object#hashCode(), java.lang.Object#getClass(), java.lang.Object#notify(), java.lang.Object#notifyAll()
 

Method Detail

getName

public java.lang.String getName()
Returns:
The name of the constraint

getParameter

public java.lang.Object getParameter()

getPropertyName

public java.lang.String getPropertyName()
Returns:
The property name of the constraint

isValid

public boolean isValid()
Return whether the constraint is valid for the owning class
Returns:
true if it is

setMessageSource

public void setMessageSource(org.springframework.context.MessageSource source)
The message source to evaluate the default messages from
Parameters:
source

setOwningClass

@java.lang.SuppressWarnings("rawtypes")
public void setOwningClass(java.lang.Class owningClass)
The class the constraint applies to
Parameters:
owningClass

setParameter

public void setParameter(java.lang.Object parameter)
The parameter which the constraint is validated against.
Parameters:
parameter

setPropertyName

public void setPropertyName(java.lang.String propertyName)
The name of the property the constraint applies to
Parameters:
propertyName

supports

@java.lang.SuppressWarnings("rawtypes")
public boolean supports(java.lang.Class type)
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

validate

public void validate(java.lang.Object target, java.lang.Object propertyValue, org.springframework.validation.Errors errors)
Validate this constraint against a property value. If implementation is vetoing (isVetoing() method returns true), then it could return 'true' to stop further validation.
Parameters:
target
propertyValue - The property value to validate
errors - The errors instance to record errors against

 

Groovy Documentation