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Common utility classes

There is a newer version: 1.0.14

package com.nls.validation;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import java.util.Collection;

public class RequiredCollectionValidator implements ConstraintValidator {

    public void initialize(Required parameters) {

    }

    public boolean isValid(Collection object, ConstraintValidatorContext context) {
        return object != null && !object.isEmpty();
    }
}