org.codehaus.groovy.grails.validation
Class ScaleConstraint

java.lang.Object
  extended by org.codehaus.groovy.grails.validation.AbstractConstraint
      extended by org.codehaus.groovy.grails.validation.ScaleConstraint
All Implemented Interfaces:
Constraint

 class ScaleConstraint
extends AbstractConstraint

A constraint to manage the scale for floating point numbers (i.e., the number of digits to the right of the decimal point). This constraint supports properties of the following types:

When applied, this constraint determines if the number includes more nonzero decimal places than the scale permits. If so, it rounds the number to the maximum number of decimal places allowed by the scale. The rounding behavior described above occurs automatically when the constraint is applied. This constraint does not generate validation errors.

Since:
0.4

Created: Jan 19, 2007 Time: 8:23:44 AM

Author:
Jason Rudolph

Field Summary
 
Fields inherited from class org.codehaus.groovy.grails.validation.AbstractConstraint
classShortName, constraintOwningClass, constraintParameter, constraintPropertyName, messageSource
 
Constructor Summary
ScaleConstraint()
           
 
Method Summary
 String getName()
           
 int getScale()
           
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.validation.AbstractConstraint
checkState, getDefaultMessage, getPropertyName, rejectValue, rejectValue, rejectValue, rejectValue, rejectValue, rejectValueWithDefaultMessage, setMessageSource, setOwningClass, setPropertyName, skipBlankValues, skipNullValues, toString, validate
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

ScaleConstraint

ScaleConstraint()
Method Detail

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

getName

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

getScale

public int getScale()
Returns:
the scale

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.

processValidate

protected void processValidate(Object target,
                               Object propertyValue,
                               Errors errors)
Specified by:
processValidate in class AbstractConstraint


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