private List<String> validateSimpleUniqueConstraintsDefinedOnFields(Identifiable<?> entity) {
Class<?> entityClass = getClassWithoutInitializingProxy(entity);
List<String> errors = newArrayList();
for (Field field : entityClass.getFields()) {
Column column = field.getAnnotation(Column.class);
if (column != null && column.unique()) {
Map<String, Object> values = newHashMap();
values.put(field.getName(), jpaUtil.getValueFromField(field, entity));
if (existsInDatabaseOnAllObjects(entity, values)) {
errors.add(simpleUniqueConstraintError(entity, field.getName()));
}
}
}
return errors;
}
private Map<String, Object> getPropertyConstraints(
Object entity, Class<?> entityClass, UniqueConstraint u, String prefix) {
Map<String, Object> values = newHashMap();
for (String column : u.columnNames()) {
Method method = columnNameToMethod(entityClass, column);
if (method != null) {
values.put(prefix + jpaUtil.methodToProperty(method), invokeMethod(method, entity));
} else {
Field field = columnNameToField(entityClass, column);
if (field != null) {
values.put(prefix + field.getName(), jpaUtil.getValueFromField(field, entity));
}
}
}
return values;
}
