com.mongodb

类 ReflectionDBObject.JavaWrapper

java.lang.Object

com.mongodb.ReflectionDBObject.JavaWrapper

封闭类:

ReflectionDBObject

public static class ReflectionDBObject.JavaWrapper
extends java.lang.Object

Represents a wrapper around the DBObject to interface with the Class fields

方法概要

限定符和类型	方法和说明
boolean	containsKey(java.lang.String key) 已过时。
java.lang.Object	get(ReflectionDBObject document, java.lang.String fieldName) Gets the value for the given field from the given document.
java.util.Set<java.lang.String>	keySet() Gets all the fields on this object.
java.lang.Object	set(ReflectionDBObject document, java.lang.String fieldName, java.lang.Object value) Adds or sets the given field to the given value on the document.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

方法详细资料

keySet

public java.util.Set<java.lang.String> keySet()

Gets all the fields on this object.

返回:

a Set of all the field names.

containsKey

@Deprecated
public boolean containsKey(java.lang.String key)

已过时。

Whether the document this represents contains the given field.

参数:

key - a field name

返回:

true if the key exists

get

public java.lang.Object get(ReflectionDBObject document,
                            java.lang.String fieldName)

Gets the value for the given field from the given document.

参数:

document - a ReflectionDBObject representing a MongoDB document

fieldName - the name of the field to get the value for

返回:

the value for the given field name

set

public java.lang.Object set(ReflectionDBObject document,
                            java.lang.String fieldName,
                            java.lang.Object value)

Adds or sets the given field to the given value on the document.

参数:

document - a ReflectionDBObject representing a MongoDB document

fieldName - the name of the field to get the value for

value - the value to set the field to

返回:

the result of setting this value