com.mongodb

类 LazyDBObject

java.lang.Object

org.bson.LazyBSONObject

com.mongodb.LazyDBObject

所有已实现的接口:

DBObject, BSONObject

@Immutable
public class LazyDBObject
extends LazyBSONObject
implements DBObject

An immutable DBObject backed by a byte buffer that lazily provides keys and values on request. This is useful for transferring BSON documents between servers when you don't want to pay the performance penalty of encoding or decoding them fully.

构造器概要

构造器

构造器和说明
LazyDBObject(byte[] bytes, int offset, LazyBSONCallback callback) Construct an instance.
LazyDBObject(byte[] bytes, LazyBSONCallback callback) Construct an instance.

方法概要

限定符和类型	方法和说明
boolean	isPartialObject() Whether DBObject.markAsPartialObject() was ever called only matters if you are going to upsert and do not want to risk losing fields.
void	markAsPartialObject() If this object was retrieved with only some fields (using a field filter) this method will be called to mark it as such.

从类继承的方法 org.bson.LazyBSONObject

containsField, containsKey, entrySet, equals, get, getBSONSize, getBytes, getOffset, hashCode, isEmpty, keySet, pipe, put, putAll, putAll, removeField, toMap, toString

从类继承的方法 java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

从接口继承的方法 org.bson.BSONObject

containsField, containsKey, get, keySet, put, putAll, putAll, removeField, toMap

构造器详细资料

LazyDBObject

public LazyDBObject(byte[] bytes,
                    LazyBSONCallback callback)

Construct an instance.

参数:

bytes - the raw bytes

callback - the callback to use to construct nested values

LazyDBObject

public LazyDBObject(byte[] bytes,
                    int offset,
                    LazyBSONCallback callback)

Construct an instance.

参数:

bytes - the raw bytes

offset - the offset into the raw bytes

callback - the callback to use to construct nested values

方法详细资料

markAsPartialObject

public void markAsPartialObject()

从接口复制的说明: DBObject

If this object was retrieved with only some fields (using a field filter) this method will be called to mark it as such.

指定者:

markAsPartialObject 在接口中 DBObject

isPartialObject

public boolean isPartialObject()

从接口复制的说明: DBObject

Whether DBObject.markAsPartialObject() was ever called only matters if you are going to upsert and do not want to risk losing fields.

指定者:

isPartialObject 在接口中 DBObject

返回:

true if this has been marked as a partial object