/**
* @see org.meveo.service.validation.ValidationServiceLocal#validateUniqueField(java.lang.String,
* java.lang.String, java.lang.String, java.lang.Object)
*/
public boolean validateUniqueField(
String className, String fieldName, Object id, Object value, Provider provider) {
// Proxy classes contain a name in "..._$$_javassist.. format" If a proxy class object claname
// was passed, string the ending "_$$_javassist.."to obtain real class name
int pos = className.indexOf("_$$_java");
if (pos > 0) {
className = className.substring(0, pos);
}
StringBuilder queryStringBuilder =
new StringBuilder("select count(*) from ")
.append(className)
.append(" where ")
.append(fieldName)
.append(" = '")
.append(value)
.append("' and provider.id = ")
.append(provider.getId());
if (id != null) {
queryStringBuilder.append(" and id != ").append(id);
}
Query query = em.createQuery(queryStringBuilder.toString());
long count = (Long) query.getSingleResult();
return count == 0L;
}
