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

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

Defines a validatable constraint.

Authors:
Graeme Rocher

Method Summary
java.lang.String getName()

@return The name of the constraint
java.lang.String getPropertyName()

@return The property name of the constraint
void setMessageSource(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, Errors errors)

Validate this constraint against a property value.

 

Method Detail

getName

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

getPropertyName

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

setMessageSource

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

setOwningClass

@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

@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, 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