org.mentawai.rule
Class RequiredRule

java.lang.Object
  extended by org.mentawai.rule.RequiredRule
All Implemented Interfaces:
Rule

public class RequiredRule
extends Object
implements Rule

A validation rule that checks if an action input value is present, in other workds, not null and not empty!

Author:
Sergio Oliveira

Constructor Summary
RequiredRule()
           
 
Method Summary
 boolean check(String field, Action action)
          Check and validate the given field from the give action.
static RequiredRule getInstance()
           
 Map<String,String> getTokens()
          Returns a map with tokens that can be used in the error messages.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

RequiredRule

public RequiredRule()
Method Detail

getInstance

public static RequiredRule getInstance()

check

public boolean check(String field,
                     Action action)
Description copied from interface: Rule
Check and validate the given field from the give action.

Specified by:
check in interface Rule
Parameters:
field - The field to validate.
action - The action from where to get the field.
Returns:
true if the validation succeeds.

getTokens

public Map<String,String> getTokens()
Description copied from interface: Rule
Returns a map with tokens that can be used in the error messages. The tokens in the error messages will be replaced by the token values in this map.

Specified by:
getTokens in interface Rule
Returns:
A map with the token values.


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