Examples with IDField edu.uci.ics.texera.api.field.IDField used on opensource projects

Example 11 with IDField

use of edu.uci.ics.texera.api.field.IDField in project textdb by TextDB.

the class DataWriter method insertTuple.

public IDField insertTuple(Tuple tuple) throws StorageException {
    if (!isOpen) {
        throw new StorageException(ErrorMessages.OPERATOR_NOT_OPENED);
    }
    try {
        // tuple must not contain _id field
        if (tuple.getSchema().containsAttribute(SchemaConstants._ID)) {
            throw new StorageException("Tuple must not contain _id field. _id must be generated by the system");
        }
        // generate a random ID for this tuple
        IDField idField = new IDField(UUID.randomUUID().toString());
        Tuple tupleWithID = getTupleWithID(tuple, idField);
        // make sure the tuple's schema agrees with the table's schema
        if (!tupleWithID.getSchema().equals(this.schema)) {
            throw new StorageException("Tuple's schema is not the same as the table's schema");
        }
        Document document = getLuceneDocument(tupleWithID);
        this.luceneIndexWriter.addDocument(document);
        this.dataStore.incrementNumDocuments(1);
        return idField;
    } catch (IOException e) {
        close();
        throw new StorageException(e.getMessage(), e);
    }
}