/**
* parsing record to extract indexed fields
*
* @param isNew record has never been parsed
* @param record record to parse
*/
private void indexRecord(boolean isNew, Record record) {
for (Field field : mc.getIndexingField(record.getClass())) {
try {
// indexes can be shared by providing common key, or default key using field path is used
String key = field.getAnnotation(FieldIndexing.class).value();
String name = field.getName();
if (key.length() == 0) {
key = record.getClass().getName() + "." + name;
}
// reading field value to add to index list
boolean status = field.isAccessible();
field.setAccessible(true);
Object fieldValue = field.get(record);
field.setAccessible(status);
// database access
EntityManager em = mc.getTransactionEntityManager();
RecordIndexPK pk = new RecordIndexPK(key, record.getId(), name);
// forcing indexe deletion to preserve record batch save (npreveting select for each save)
// Note : make sure the ModelController provides an entity manager with
// setShouldPerformDeletesFirst(true)
if (!isNew) {
em.remove(em.getReference(RecordIndex.class, pk));
}
// mapping the index to the database
Comparable converted = pm.getConverted(fieldValue);
if (converted != null) {
RecordIndex ri = new RecordIndex(pk);
switch (pm.getType(field.getType())) {
case DATE:
ri.setDate((Date) converted);
break;
case STRING:
ri.setValue((String) converted);
break;
case NUMERIC:
ri.setNumeric((BigDecimal) converted);
break;
}
// saving
em.persist(ri);
}
} catch (IllegalArgumentException | IllegalAccessException ex) {
// convet to runtime exception
throw new RuntimeException(ex);
}
}
}
