org.codehaus.griffon.runtime.validation.constraints

Class ScaleConstraint

java.lang.Object

org.codehaus.griffon.runtime.validation.constraints.AbstractConstraint

org.codehaus.griffon.runtime.validation.constraints.ScaleConstraint

All Implemented Interfaces:

Constraint

public class ScaleConstraint
extends AbstractConstraint

Manages the scale for floating point numbers (i.e., the number of digits to the right of the decimal point).

Supports properties of the following types:

• java.lang.Float
• java.lang.Double
• java.math.BigDecimal (and its subclasses)

When applied, 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

Author:

Jason Rudolph

Field Summary

Fields

Modifier and Type	Field and Description
static String	VALIDATION_DSL_NAME

Fields inherited from class org.codehaus.griffon.runtime.validation.constraints.AbstractConstraint

classShortName, constraintOwningClass, constraintParameter, constraintPropertyName, messageSource

Fields inherited from interface griffon.plugins.validation.constraints.Constraint

EXCEEDED_SUFFIX, INVALID_SUFFIX, NOT_PREFIX, NOTMET_SUFFIX, TOOBIG_SUFFIX, TOOLONG_SUFFIX, TOOSHORT_SUFFIX, TOOSMALL_SUFFIX

Constructor Summary

Constructors

Constructor and Description
ScaleConstraint()

Method Summary

Modifier and Type	Method and Description
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.griffon.runtime.validation.constraints.AbstractConstraint

checkState, getDefaultMessage, getParameter, getPropertyName, isValid, 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

Field Detail

VALIDATION_DSL_NAME

public static final String VALIDATION_DSL_NAME

See Also:

Constant Field Values

Constructor Detail

ScaleConstraint

public ScaleConstraint()

Method Detail

supports

public boolean supports(@Nonnull
                        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

@Nonnull
public String getName()

Returns:

The name of the constraint

getScale

public int getScale()

Returns:

the scale

setParameter

public void setParameter(@Nonnull
                         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(@Nonnull
                               Object target,
                               Object propertyValue,
                               @Nonnull
                               Errors errors)

Specified by:

processValidate in class AbstractConstraint