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com.eireneh.util
Class Validator  

java.lang.Object
  com.eireneh.util.Validator

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public final class Validator

extends java.lang.Object

A generic class of String utils. It would be good if we could put this stuff in java.lang ...

Distribution Licence: Project B is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License, version 2 as published by the Free Software Foundation. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. The License is available on the internet here, by writing to Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA, Or locally at the Licence link below. The copyright to this program is held by it's authors.

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Constructor Summary
private	Validator()           Ensure that we can not be instansiated

 

Method Summary
static boolean	isAsciiAlphanumeric(java.lang.String test)           Check that the given string contains ascii letters (upper and lower) and numbers only.
static boolean	isInternetEmail(java.lang.String text)           Check that the given text represents a potentially valid email address.
static boolean	isSafeEmbededHTML(java.lang.String test)           Check that the given string does not contain control characters (except return, ff or tab) or any triangular brackets or ampersands.
static boolean	isSimpleAscii(java.lang.String test)           Check that the given string contains letters (upper and lower), and simple punctuation only.
static boolean	isSpaceAlphanumeric(java.lang.String test)           Check that the given string contains letters (upper and lower), space and numbers only.
static java.lang.String	trimToNumberic(java.lang.String orig)           Take a string (for example "£2,000.00") and chop out any of the chars that make it fail to parse (giving 2000.00) All we do is chop out any chars that are not one of "+", "-", "." or a number

 

Methods inherited from class java.lang.Object

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

 

Constructor Detail

Validator

private Validator()

Ensure that we can not be instansiated

Method Detail

isAsciiAlphanumeric

public static boolean isAsciiAlphanumeric(java.lang.String test)

Check that the given string contains ascii letters (upper and lower) and numbers only. This is useful for checking identifiers for special values

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isSpaceAlphanumeric

public static boolean isSpaceAlphanumeric(java.lang.String test)

Check that the given string contains letters (upper and lower), space and numbers only. In effect there can be no control characters or punctuation. This ensures that the string can be safely displayed in a web browser without side effects.

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isSimpleAscii

public static boolean isSimpleAscii(java.lang.String test)

Check that the given string contains letters (upper and lower), and simple punctuation only. In effect there can be no control characters or dangerous punctuation. This ensures that the string can be safely displayed in a web browser without side effects. The allowed punctuation marks are [comma], [apostrophe], [period], [minus], [query], [bang], [quote], [slash], [open paren], [close paren] and [colon]

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isSafeEmbededHTML

public static boolean isSafeEmbededHTML(java.lang.String test)

Check that the given string does not contain control characters (except return, ff or tab) or any triangular brackets or ampersands. i.e. nothing that HTML regards as special.

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isInternetEmail

public static boolean isInternetEmail(java.lang.String text)

Check that the given text represents a potentially valid email address. We should reject all of the following: a, a@b, a@b.c. There is probably a lot more we could do to become an rfc822 strict tester, probably mostly in the character set arena. I've seen a regex to do this better, but is is very unmaintainable and it requires a regex library.

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trimToNumberic

public static java.lang.String trimToNumberic(java.lang.String orig)

Take a string (for example "£2,000.00") and chop out any of the chars that make it fail to parse (giving 2000.00) All we do is chop out any chars that are not one of "+", "-", "." or a number

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> com >> eireneh >> [ util overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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