@Override
public int delete(final Collection<?> collection) {
acquireReference();
try {
if (!Checker.isEmpty(collection)) {
EntityTable table = TableManager.getTable(collection.iterator().next());
if (table.key != null) {
SQLStatement stmt = SQLBuilder.buildDeleteSql(collection);
return stmt.execDeleteCollection(
mHelper.getWritableDatabase(), collection, mTableManager);
} else {
Integer size =
Transaction.execute(
mHelper.getWritableDatabase(),
new Worker<Integer>() {
@Override
public Integer doTransaction(SQLiteDatabase db) throws Exception {
for (Object entity : collection) {
SQLBuilder.buildDeleteSql(entity)
.execDeleteWithMapping(db, entity, mTableManager);
}
if (Log.isPrint) {
Log.i(TAG, "Exec delete(no primarykey) ：" + collection.size());
}
return collection.size();
}
});
return size == null ? 0 : size;
}
}
} catch (Exception e) {
e.printStackTrace();
} finally {
releaseReference();
}
return SQLStatement.NONE;
}
