com.redhat.rhn.common.validator

Class RequiredIfConstraint

java.lang.Object

com.redhat.rhn.common.validator.ParsedConstraint

com.redhat.rhn.common.validator.RequiredIfConstraint

All Implemented Interfaces:

Constraint

Direct Known Subclasses:

DoubleConstraint, LongConstraint, StringConstraint

public class RequiredIfConstraint
extends ParsedConstraint

RequiredIf constraint checks the value of an associated field in the object to check to see if it is a specific value. If it is, then the field associated with this constraint is required. This constraint extends LengthConstraint so it can include min/max lengths.

Constructor Summary

Constructors

Constructor and Description
RequiredIfConstraint(java.lang.String identifierIn) This will create a new Constraints with the specified identifier as the "name".

Method Summary

Modifier and Type	Method and Description
void	addField(java.lang.String fieldNameIn, java.lang.String fieldValueIn) Set the name of the field to check against to see if *this* field is required.
boolean	isRequired(java.lang.Object value, java.lang.Object objectToCheck) Check the constraint against the value passed in as well as check the objectToCheck's referenced field that is 'requiredIf'.

Methods inherited from class com.redhat.rhn.common.validator.ParsedConstraint

checkConstraint, getASCII, getDataType, getIdentifier, getOptional, getPosix, getUserName, isPosix, isValidUserName, setASCII, setDataType, setOptional, setPosix, setUserName, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

RequiredIfConstraint

public RequiredIfConstraint(java.lang.String identifierIn)

This will create a new Constraints with the specified identifier as the "name".

Parameters:

identifierIn - String identifier for Constraint.

Method Detail

isRequired

public boolean isRequired(java.lang.Object value,
                          java.lang.Object objectToCheck)

Check the constraint against the value passed in as well as check the objectToCheck's referenced field that is 'requiredIf'.

Parameters:

value - the value we want to check to see if its valid or not only if the objectToCheck's referenced requiredIf field is set to the proper value.

objectToCheck - the Object we will query to find the associated field

Returns:

if the field is required or not.

addField

public void addField(java.lang.String fieldNameIn,
                     java.lang.String fieldValueIn)

Set the name of the field to check against to see if *this* field is required. So if the constraint is a "requiredIf field FOO == 'BAR'" then we want to call addField("FOO", "BAR");

Parameters:

fieldNameIn - the name of the field

fieldValueIn - the value of the field