org.millstone.base.data.validator
Class NullValidator

java.lang.Object
  |
  +--org.millstone.base.data.validator.NullValidator

All Implemented Interfaces:

Validator

public class NullValidator

extends java.lang.Object

implements Validator

Nested Class Summary

Nested classes inherited from class org.millstone.base.data.Validator

Validator.InvalidValueException, Validator.Suggestive

Constructor Summary

NullValidator(java.lang.String errorMessage, boolean allowNull)
Create a new NullValidator

Method Summary

java.lang.String	getErrorMessage() Get the error message that is displayed in case the value is invalid.
boolean	isNullAllowed() True if nulls are allowed.
boolean	isValid(java.lang.Object value) True of the value is valid.
void	setErrorMessage(java.lang.String errorMessage) Set the error message to be displayed on invalid value.
void	setNullAllowed(boolean allowNull) Sets if nulls are to be allowed.
void	validate(java.lang.Object value) Validate the data given in value.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NullValidator

public NullValidator(java.lang.String errorMessage,
                     boolean allowNull)

Create a new NullValidator

Parameters:

errorMessage - - The error message to display on invalidation.

allowNull - - Are nulls allowed?

Method Detail

validate

public void validate(java.lang.Object value)
              throws Validator.InvalidValueException

Validate the data given in value.

Specified by:

validate in interface Validator

Parameters:

value - - The value to validate.

Throws:

Validator.InvalidValueException - - The value was invalid.

isValid

public boolean isValid(java.lang.Object value)

True of the value is valid.

Specified by:

isValid in interface Validator

Parameters:

value - - The value to validate.

isNullAllowed

public final boolean isNullAllowed()

True if nulls are allowed.

setNullAllowed

public void setNullAllowed(boolean allowNull)

Sets if nulls are to be allowed.

Parameters:

allowNull - - Do we allow nulls?

getErrorMessage

public java.lang.String getErrorMessage()

Get the error message that is displayed in case the value is invalid.

setErrorMessage

public void setErrorMessage(java.lang.String errorMessage)

Set the error message to be displayed on invalid value.