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The MongoDB Java Driver uber-artifact, containing mongodb-driver, mongodb-driver-core, and bson
/*
* Copyright (c) 2008-2014 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 org.bson;
import org.bson.io.BSONByteBuffer;
import java.util.HashMap;
/**
* @author brendan
* @author scotthernandez
*
* @deprecated This class is NOT a part of public API and will be dropped in 3.x versions.
*/
@Deprecated
public class KeyCachingLazyBSONObject extends LazyBSONObject {
public KeyCachingLazyBSONObject(byte[] data , LazyBSONCallback cbk) { super( data , cbk ); }
public KeyCachingLazyBSONObject(byte[] data , int offset , LazyBSONCallback cbk) { super( data , offset , cbk ); }
/**
* @deprecated use {@link #KeyCachingLazyBSONObject(byte[], LazyBSONCallback)} instead
*/
@Deprecated
public KeyCachingLazyBSONObject( BSONByteBuffer buffer, LazyBSONCallback callback ){ super( buffer, callback ); }
/**
* @deprecated use {@link #KeyCachingLazyBSONObject(byte[], int, LazyBSONCallback)} instead
*/
@Deprecated
public KeyCachingLazyBSONObject( BSONByteBuffer buffer, int offset, LazyBSONCallback callback ){ super( buffer, offset, callback ); }
@Override
public Object get( String key ) {
ensureFieldList();
return super.get( key );
}
@Override
public boolean containsField( String s ) {
ensureFieldList();
if (! fieldIndex.containsKey( s ) )
return false;
else
return super.containsField( s );
}
synchronized private void ensureFieldList() {
//only run once
if (fieldIndex == null) return;
try {
int offset = _doc_start_offset + FIRST_ELMT_OFFSET;
while ( !isElementEmpty( offset ) ){
int fieldSize = sizeCString( offset );
int elementSize = getElementBSONSize( offset++ );
String name = _input.getCString( offset );
ElementRecord _t_record = new ElementRecord( name, offset );
fieldIndex.put( name, _t_record );
offset += ( fieldSize + elementSize );
}
} catch (Exception e) {
fieldIndex = new HashMap();
}
}
private HashMap fieldIndex = new HashMap();
}
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