gistfile1.java

package util.validation;

import java.lang.reflect.InvocationTargetException;

import models.bpo.SubjectMarketability;

import org.apache.commons.beanutils.BeanUtils;
import org.apache.commons.beanutils.converters.BooleanConverter;
import org.apache.commons.lang.StringUtils;

import play.data.validation.Check;

public class RequiredIfOtherEqualsTrue extends Check {

	@Override
	public boolean isSatisfied(Object validatedObject, Object value) {

		BooleanConverter b = new BooleanConverter();
		checkWithCheck.getMessage();
		try {
			String trueFalseValue = BeanUtils.getSimpleProperty(validatedObject, checkWithCheck.getMessage());
			boolean isTrue = (Boolean) b.convert(Boolean.class, trueFalseValue);
			if (isTrue && StringUtils.isBlank((String)value)) {
				setMessage("validation.required");
				return false;
			}
			else {
				return true;
			}
		}
		catch (IllegalAccessException e) {
			return false;
		}
		catch (InvocationTargetException e) {
			return false;
		}
		catch (NoSuchMethodException e) {
			return false;
		}

	}

}

gistfile2.java

public boolean other;

@CheckWith(value=RequiredIfOtherEqualsTrue.class, message="other")
public String other_value;