Valang Custom Functions

[chuisman9955]

Hello,

I'm trying to create a custom function for use with valang validation.

I have the following function:

package com.myProject.validation;

import java.util.regex.Pattern;

import org.springmodules.validation.functions.AbstractFun ction;
import org.springmodules.validation.functions.Function;

public class EmailValidatorFunction extends AbstractFunction {

public EmailValidatorFunction(Function[] arg0, int arg1, int arg2) {
super(arg0, arg1, arg2);
definedExactNumberOfArguments(1);
}

@Override
protected Object doGetResult(Object target) throws Exception {
Pattern pattern = Pattern.compile(".+@.+\\.[a-z]+");
String str = getArguments()[0].getResult(target).toString();
return pattern.matcher(str.subSequence(0, str.length())).matches() ? Boolean.TRUE
: Boolean.FALSE;
}

}

With the following bean definition:
<bean id="emailValidator
<property name="customFunctions">
<map>
<entry key="emailValidator"
value="com.myProject.validation.EmailValidatorFunc tion">
<value>
<![CDATA[
{ email : emailValidator(email) : 'Email is not formatted correctly.' }
]]>
</value>
</entry>
</map>
</property>
</bean>

this fails miserably: <entry> is only allowed to contain either a 'value' attribute OR a 'value-ref' attribute OR a value sub-element

AND if I'm to define my bean the following way:
<bean id="emailValidator
<property name="customFunctions">
<map>
<entry key="emailValidator"> <value>com.myProject.validation.EmailValidatorFunc tion</value>
</entry>
</map>
</property>
</bean>
I get a class not found exception on com.myProject.validation.EmailValidatorFuntion

How does the function definition work?

[vanwobe]

You have to add the property : valang
<property name="valang">

<beans>
	<bean id="testCustomFunctions" class="org.springmodules.validation.ValangValidatorFactoryBean" lazy-init="true">
		<property name="customFunctions">
			<map>
				<entry key="tupper">
					<value>org.springmodules.validation.functions.UpperCaseFunction</value>
				</entry>
				<entry key="lifeCycle" value="org.springmodules.validation.LifeCycleTestFunction"/>
			</map>
		</property>
		<property name="valang">
			<value><![CDATA[
{ firstName : length(tupper(?)) > 0 : 'First name is empty' }
{ lifeCycleBean : lifeCycle(?) is not null and length('abc\'') = 4 and length('\\') = 1 : 'Life cycle property is null' }
			]]></value>
		</property>
	</bean>

	<bean class="java.util.Date"/>
	
	<bean id="pattern" class="java.util.regex.Pattern" factory-method="compile">
		<constructor-arg value="foo|bar"/>
	</bean>
	
</beans>