jmind.core.mongodb

类 MongoCollection

java.lang.Object

jmind.core.mongodb.MongoCollection

直接已知子类:

MongoAtomic

public class MongoCollection
extends java.lang.Object

基于对 DBCollection 的封装

作者:

weibo.xie 2011-12-1

字段概要

字段

限定符和类型	字段和说明
static java.lang.String	ID
java.lang.String	name
static int	ONE

构造器概要

构造器

构造器和说明
MongoCollection(com.mongodb.DB db)
MongoCollection(com.mongodb.DB db, java.lang.String suffix)

方法概要

限定符和类型	方法和说明
java.util.List<com.mongodb.DBObject>	betweenAnd(java.lang.Object start, java.lang.Object end) Between
protected com.mongodb.BasicDBObjectBuilder	builder()
protected com.mongodb.BasicDBObjectBuilder	builder(java.lang.String key, java.lang.Object val)
long	count()
java.util.List<com.mongodb.DBObject>	find(com.mongodb.DBObject query) 查找所有
java.util.List<com.mongodb.DBObject>	find(com.mongodb.DBObject query, int start, int limit)
com.mongodb.DBObject	findOne(com.mongodb.DBObject o)
com.mongodb.DBObject	findOne(java.lang.Object primaryKey)
com.mongodb.DBObject	findOne(java.lang.Object obj, com.mongodb.DBObject fields)
com.mongodb.DBCollection	getColl()
int	getMax(java.lang.String field)
int	getMin(java.lang.String field)
java.lang.String	getToday()
java.util.List<com.mongodb.DBObject>	getTopByField(com.mongodb.DBCollection coll, java.lang.String field, int max)
java.util.List<com.mongodb.DBObject>	getTopByField(java.lang.String field, int max)
void	inc(java.lang.Object primaryKey, java.lang.String field, int num)
void	insert(com.mongodb.DBObject... arr)
void	insert(java.util.List<com.mongodb.DBObject> arr)
java.util.Collection<java.lang.String>	keys()
void	remove(java.lang.Object primaryKey) 根据主键删除
void	save(com.mongodb.DBObject o)
com.mongodb.WriteResult	set(java.lang.Object _id, com.mongodb.DBObject o) 有则更新，无则插入
int	sum(java.lang.String field, com.mongodb.DBObject query) 得到某字段的和
com.mongodb.WriteResult	update(com.mongodb.DBObject q, com.mongodb.DBObject o)
void	updateById(com.mongodb.DBObject update)

从类继承的方法 java.lang.Object

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

字段详细资料

ID

public static final java.lang.String ID

另请参阅:

常量字段值

ONE

public static final int ONE

另请参阅:

常量字段值

name

public java.lang.String name

构造器详细资料

MongoCollection

public MongoCollection(com.mongodb.DB db)

MongoCollection

public MongoCollection(com.mongodb.DB db,
                       java.lang.String suffix)

方法详细资料

getToday

public java.lang.String getToday()

keys

public java.util.Collection<java.lang.String> keys()

getColl

public com.mongodb.DBCollection getColl()

builder

protected com.mongodb.BasicDBObjectBuilder builder()

返回:

builder

protected com.mongodb.BasicDBObjectBuilder builder(java.lang.String key,
                                                   java.lang.Object val)

参数:

key -

val -

返回:

save

public void save(com.mongodb.DBObject o)

insert

public void insert(com.mongodb.DBObject... arr)

insert

public void insert(java.util.List<com.mongodb.DBObject> arr)

update

public com.mongodb.WriteResult update(com.mongodb.DBObject q,
                                      com.mongodb.DBObject o)

参数:

q -

o -

返回:

updateById

public void updateById(com.mongodb.DBObject update)

set

public com.mongodb.WriteResult set(java.lang.Object _id,
                                   com.mongodb.DBObject o)

有则更新，无则插入

参数:

_id -

o -

返回:

inc

public void inc(java.lang.Object primaryKey,
                java.lang.String field,
                int num)

参数:

primaryKey -

field -

num -

remove

public void remove(java.lang.Object primaryKey)

根据主键删除

参数:

primaryKey -

betweenAnd

public java.util.List<com.mongodb.DBObject> betweenAnd(java.lang.Object start,
                                                       java.lang.Object end)

Between

参数:

start -

end -

返回:

find

public java.util.List<com.mongodb.DBObject> find(com.mongodb.DBObject query)

查找所有

返回:

find

public java.util.List<com.mongodb.DBObject> find(com.mongodb.DBObject query,
                                                 int start,
                                                 int limit)

findOne

public com.mongodb.DBObject findOne(java.lang.Object primaryKey)

参数:

primaryKey主键查找 -

返回:

findOne

public com.mongodb.DBObject findOne(com.mongodb.DBObject o)

参数:

o -

返回:

findOne

public com.mongodb.DBObject findOne(java.lang.Object obj,
                                    com.mongodb.DBObject fields)

参数:

obj -

fields -

返回:

getMax

public int getMax(java.lang.String field)

参数:

field - 字段

返回:

最大值

getMin

public int getMin(java.lang.String field)

参数:

field - 字段最小值

返回:

sum

public int sum(java.lang.String field,
               com.mongodb.DBObject query)

得到某字段的和

参数:

field -

query - 查询条件

返回:

count

public long count()

返回:

getTopByField

public java.util.List<com.mongodb.DBObject> getTopByField(java.lang.String field,
                                                          int max)

参数:

field - 字段

max - 条数

返回:

getTopByField

public java.util.List<com.mongodb.DBObject> getTopByField(com.mongodb.DBCollection coll,
                                                          java.lang.String field,
                                                          int max)

参数:

coll -

field -

max -

返回: