C# Класс MongoDB.Driver.MapReduceBuilder

Provides a Fluent interface to build and execute Map/Reduce calls.

Наследование: IDisposable

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Открытые методы

Метод	Описание
Dispose ( ) : void
Execute ( ) : MapReduce
Finalize ( Code function ) : MapReduceBuilder	Function to apply to all the results when finished.
KeepTemp ( bool keep ) : MapReduceBuilder	When true the generated collection is not treated as temporary. Specifying out automatically makes the collection permanent
Limit ( long limit ) : MapReduceBuilder	Number of objects to return from collection
Map ( Code function ) : MapReduceBuilder	The map function references the variable this to inspect the current object under consideration. A map function must call emit(key,value) at least once, but may be invoked any number of times, as may be appropriate.
Map ( string function ) : MapReduceBuilder	The map function references the variable this to inspect the current object under consideration. A map function must call emit(key,value) at least once, but may be invoked any number of times, as may be appropriate.
MapReduceBuilder ( MapReduce mr ) : System
Out ( String name ) : MapReduceBuilder	Name of the final collection the results should be stored in. A temporary collection is still used and then renamed to the target name atomically.
Query ( Document query ) : MapReduceBuilder	Query filter object
Reduce ( Code function ) : MapReduceBuilder	The reduce function receives a key and an array of values. To use, reduce the received values, and return a result. The MapReduce engine may invoke reduce functions iteratively; thus, these functions must be idempotent. If you need to perform an operation only once, use a finalize function.
Reduce ( string function ) : MapReduceBuilder	The reduce function receives a key and an array of values. To use, reduce the received values, and return a result. The MapReduce engine may invoke reduce functions iteratively; thus, these functions must be idempotent. If you need to perform an operation only once, use a finalize function.
Scope ( Document scope ) : MapReduceBuilder	Document where fields go into javascript global scope
Sort ( Document sort ) : MapReduceBuilder	Sort the query. Useful for optimization
Verbose ( bool val ) : MapReduceBuilder	Provides statistics on job execution time.

Описание методов

Dispose() публичный Метод

public Dispose ( ) : void
Результат	void

Execute() публичный Метод

public Execute ( ) : MapReduce
Результат	MapReduce

Finalize() публичный Метод

Function to apply to all the results when finished.

public Finalize ( Code function ) : MapReduceBuilder
function	Code
Результат	MapReduceBuilder

KeepTemp() публичный Метод

When true the generated collection is not treated as temporary. Specifying out automatically makes the collection permanent

public KeepTemp ( bool keep ) : MapReduceBuilder
keep	bool
Результат	MapReduceBuilder

Limit() публичный Метод

Number of objects to return from collection

public Limit ( long limit ) : MapReduceBuilder
limit	long
Результат	MapReduceBuilder

Map() публичный Метод

The map function references the variable this to inspect the current object under consideration. A map function must call emit(key,value) at least once, but may be invoked any number of times, as may be appropriate.

public Map ( Code function ) : MapReduceBuilder
function	Code
Результат	MapReduceBuilder

Map() публичный Метод

public Map ( string function ) : MapReduceBuilder
function	string
Результат	MapReduceBuilder

MapReduceBuilder() публичный Метод

public MapReduceBuilder ( MapReduce mr ) : System
mr	MapReduce
Результат	System

Out() публичный Метод

Name of the final collection the results should be stored in.

A temporary collection is still used and then renamed to the target name atomically.

public Out ( String name ) : MapReduceBuilder
name	String
Результат	MapReduceBuilder

Query() публичный Метод

Query filter object

public Query ( Document query ) : MapReduceBuilder
query	Document
Результат	MapReduceBuilder

Reduce() публичный Метод

The reduce function receives a key and an array of values. To use, reduce the received values, and return a result.

The MapReduce engine may invoke reduce functions iteratively; thus, these functions must be idempotent. If you need to perform an operation only once, use a finalize function.

public Reduce ( Code function ) : MapReduceBuilder
function	Code
Результат	MapReduceBuilder

Reduce() публичный Метод

The reduce function receives a key and an array of values. To use, reduce the received values, and return a result.

The MapReduce engine may invoke reduce functions iteratively; thus, these functions must be idempotent. If you need to perform an operation only once, use a finalize function.

public Reduce ( string function ) : MapReduceBuilder
function	string
Результат	MapReduceBuilder

Scope() публичный Метод

Document where fields go into javascript global scope

public Scope ( Document scope ) : MapReduceBuilder
scope	Document
Результат	MapReduceBuilder

Sort() публичный Метод

Sort the query. Useful for optimization

public Sort ( Document sort ) : MapReduceBuilder
sort	Document
Результат	MapReduceBuilder

Verbose() публичный Метод

Provides statistics on job execution time.

public Verbose ( bool val ) : MapReduceBuilder
val	bool
Результат	MapReduceBuilder