examples.e2e.b2b
Class LongValueValidator

java.lang.Object
  |
  +--examples.e2e.b2b.LongValueValidator

public class LongValueValidator

extends java.lang.Object

implements Validator

Validate a String value as a long within a defined range. The string value typically comes from an HTML form. The String value must represent a valid java long number. An expression object (LongMinMaxExpression) restricts the numerical values that the long value may take. The allowed value is dictated by the following expression: expression.max() >= value >= expression.min()

See Also:

LongMinMaxExpression, Validator

Field Summary

static java.lang.String	ABOVE_MAX
static java.lang.String	BELOW_MIN
static java.lang.String	NOT_A_NUMBER
static java.lang.String	REQUIRED

Constructor Summary

LongValueValidator()
Constructs a validator.

Method Summary

java.lang.String

validate(ValidatedValues validatedValues, java.lang.String key, java.lang.Object expressionObject, java.lang.String message) Validates the String value from the validatedValues object (which is retrieved using the key supplied) as a java long.

Methods inherited from class java.lang.Object

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

Field Detail

REQUIRED

public static final java.lang.String REQUIRED

NOT_A_NUMBER

public static final java.lang.String NOT_A_NUMBER

BELOW_MIN

public static final java.lang.String BELOW_MIN

ABOVE_MAX

public static final java.lang.String ABOVE_MAX

Constructor Detail

LongValueValidator

public LongValueValidator()

Constructs a validator.

Method Detail

validate

public java.lang.String validate(ValidatedValues validatedValues,
                                 java.lang.String key,
                                 java.lang.Object expressionObject,
                                 java.lang.String message)

Validates the String value from the validatedValues object (which is retrieved using the key supplied) as a java long. The expression object dictates the minimum and maximum values for the long value. The String value obtained from the validatedValues object is trimmed of whitespace using the trim() method of String. See the ValidatedValues documentation for more details on determining the outcome of the validate() method call.

Specified by:

validate in interface Validator

Parameters:

validatedValues - a ValidatedValues object which contains the value to validate.

key - the key to use with the validatedValues object to obtain the string to validate.

expressionObject - an object of type LongMinMaxExpression that expresses the minimum and maximum values for the validated value.

message - the message to use if the value fails to validate. If message is null then built-in messages will be used.

Returns:

the trimmed String retrieved from validatedValues via the key.

Throws:

java.lang.RuntimeException - if the expressionObject is not an instance of LongMinMaxExpression.