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The Java operations layer for the MongoDB Java Driver.
Third parties can wrap this layer to provide custom higher-level APIs
/*
* Copyright 2008-present MongoDB, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.mongodb.internal.connection;
import com.mongodb.internal.validator.NoOpFieldNameValidator;
import org.bson.BsonDocument;
import org.bson.io.BsonOutput;
/**
* An OP_QUERY message for an actual query (not a command).
*
* @mongodb.driver.manual ../meta-driver/latest/legacy/mongodb-wire-protocol/#op-query OP_QUERY
*/
class QueryMessage extends BaseQueryMessage {
private final BsonDocument queryDocument;
private final BsonDocument fields;
QueryMessage(final String collectionName, final int skip, final int numberToReturn, final BsonDocument queryDocument,
final BsonDocument fields, final MessageSettings settings) {
super(collectionName, skip, numberToReturn, settings);
this.queryDocument = queryDocument;
this.fields = fields;
}
@Override
protected EncodingMetadata encodeMessageBodyWithMetadata(final BsonOutput bsonOutput) {
writeQueryPrologue(bsonOutput);
int firstDocumentStartPosition = bsonOutput.getPosition();
addDocument(queryDocument, bsonOutput, new NoOpFieldNameValidator());
if (fields != null) {
addDocument(fields, bsonOutput, new NoOpFieldNameValidator());
}
return new EncodingMetadata(firstDocumentStartPosition);
}
}