com.oopreserch.web
Class AbstractVerifier

java.lang.Object
  |
  +--com.oopreserch.web.AbstractVerifier

All Implemented Interfaces:

FormValueVerifier

Direct Known Subclasses:

IsAlphabet, IsAlphabetLower, IsAlphabetUpper, IsBasicLatin, IsDigit, IsDigitOrAlphabet, IsJpFullWidth, IsJpFullWidthKatakana, IsJpHalfWidth, IsJpHalfWidthKatakana, IsJpHiragana, IsJpPostalAddress

public abstract class AbstractVerifier

extends java.lang.Object

implements FormValueVerifier

The abstarct class which implements usefull methods to be used by its subclass.

Please feel free to implement your own subclass of this class. Your subclass must implement #isValid(char) method. Then, isValidString(String) calls #isValid(char) with each character from the given String. Only if #isValid(char) returns true for all these characters, isValidString(String) returns true.

If you can depend on the regular expression matching (which is introduced in JDK 1.4), this class may not be so usefull, because you can implements your own isValidString(String) easily.

But, if you can't, please take the full advantage of this class. Within your #isValid(char), you can call some of the usefull methods of this class. By this way, you can easily implement FormValueVerifier interface.

Author:

Jun Inamori

Constructor Summary

AbstractVerifier()

Method Summary

boolean

isValidString(java.lang.String str) This method will be used by Form to check the validity of the String to be inserted.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractVerifier

public AbstractVerifier()

Method Detail

isValidString

public boolean isValidString(java.lang.String str)

This method will be used by Form to check the validity of the String to be inserted.

The member of FormValueVerifier interface. This method iterates over all the characters in the given String. For each character, #isValid(char) is called. The subclass of this class must implements its own #isValid(char) method. Only if #isValid(char) returns true for all the characters, this method returns true.

Specified by:

isValidString in interface FormValueVerifier

Parameters:

str - The String to be inserted into the HTML fragment.

Returns:

true if the String is valid. Otherwise, false.

Since:

1.4