com.bankframe.validation
Class DataTypeValidator

java.lang.Object
  com.bankframe.validation.DataTypeValidator

public class DataTypeValidator

extends java.lang.Object

This class provides utility methods for validating data-types

Constructor Summary

DataTypeValidator()

Method Summary

static boolean	isDigitsOnly(java.lang.String value) This method checks if the specified String contains only digits.
static boolean	isExactLength(java.lang.String value, int length) This method checks if the length of the specified string is exactly the required value.
static boolean	isLengthGreaterThanOrEqual(java.lang.String value, int minLength) This method checks if the length of the specified string is greater than or equal to the specified minimum length.
static boolean	isLengthLessThanOrEqual(java.lang.String value, int maxLength) This method checks if the length of the specified string is less than or equal to the specified maximum length.
static boolean	isLetterOrDigitsOnly(java.lang.String value) This method checks if the specified String contains only letters or digits If the value is null or zero length then true is returned
static boolean	isLetterOrDigitsOrWhiteSpacesOnly(java.lang.String value) This method checks if the specified String contains only letters or digits or white spaces If the value is null or zero length then true is returned
static boolean	isLettersOnly(java.lang.String value) This method checks if the specified String contains only letters If the value is null or zero length then true is returned
static boolean	isNullOrEmpty(java.lang.Object value) This method will return true if the value is: null an empty string a string containing: null Otherwise this method will return false
static boolean	isNullOrEmpty(java.lang.String value) This method will return true if the value is: null an empty string a string containing: null Otherwise this method will return false This method is optimised for String objects.

Methods inherited from class java.lang.Object

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

Constructor Detail

DataTypeValidator

public DataTypeValidator()

Method Detail

isNullOrEmpty

public static boolean isNullOrEmpty(java.lang.Object value)

This method will return true if the value is:

1. null
2. an empty string
3. a string containing: null

Otherwise this method will return false

Parameters:

value - The Value to test

Returns:

True if the value is null or empty

isNullOrEmpty

public static boolean isNullOrEmpty(java.lang.String value)

This method will return true if the value is:

1. null
2. an empty string
3. a string containing: null

Otherwise this method will return false This method is optimised for String objects.

Parameters:

value - The Value to test

Returns:

True if the value is null or empty

isLengthLessThanOrEqual

public static boolean isLengthLessThanOrEqual(java.lang.String value,
                                              int maxLength)

This method checks if the length of the specified string is less than or equal to the specified maximum length. If the value is null or zero length then true is returned

Parameters:

value - The String to test

maxLength - The maximum valid length

Returns:

True if the string is less than or equal the max value, false otherwise.

isLengthGreaterThanOrEqual

public static boolean isLengthGreaterThanOrEqual(java.lang.String value,
                                                 int minLength)

This method checks if the length of the specified string is greater than or equal to the specified minimum length. If the value is null or zero length then true is returned

Parameters:

value - The String to test

minLength - The minimum valid length

Returns:

True if the string is grester than or equal the min value, false otherwise.

isExactLength

public static boolean isExactLength(java.lang.String value,
                                    int length)

This method checks if the length of the specified string is exactly the required value. If the value is null or zero length then false is returned

Parameters:

value - The String to test

length - The required length

Returns:

True if the string is the exact length, false otherwise

isLetterOrDigitsOnly

public static boolean isLetterOrDigitsOnly(java.lang.String value)

This method checks if the specified String contains only letters or digits If the value is null or zero length then true is returned

Parameters:

value - The String to test

Returns:

True if the string only contains letters or digits

isDigitsOnly

public static boolean isDigitsOnly(java.lang.String value)

This method checks if the specified String contains only digits. If the value is null or zero length then true is returned

Parameters:

value - The String to test

Returns:

True if the string only contains digits

isLettersOnly

public static boolean isLettersOnly(java.lang.String value)

This method checks if the specified String contains only letters If the value is null or zero length then true is returned

Parameters:

value - The String to test

Returns:

True if the string only contains letters

isLetterOrDigitsOrWhiteSpacesOnly

public static boolean isLetterOrDigitsOrWhiteSpacesOnly(java.lang.String value)

This method checks if the specified String contains only letters or digits or white spaces If the value is null or zero length then true is returned

Parameters:

value - The String to test

Returns:

True if the string only contains letters or digits or white spaces