org.springframework.data.mongodb.core.aggregation

Class ProjectionOperation.ExpressionProjectionOperationBuilder

java.lang.Object

org.springframework.data.mongodb.core.aggregation.ProjectionOperation.ProjectionOperationBuilder

org.springframework.data.mongodb.core.aggregation.ProjectionOperation.ExpressionProjectionOperationBuilder

All Implemented Interfaces:

AggregationOperation

Enclosing class:

ProjectionOperation

public static class ProjectionOperation.ExpressionProjectionOperationBuilder
extends ProjectionOperation.ProjectionOperationBuilder

An ProjectionOperation.ProjectionOperationBuilder that is used for SpEL expression based projections.

Author:

Thomas Darimont

Constructor Summary

Constructors

Constructor and Description
ExpressionProjectionOperationBuilder(String expression, ProjectionOperation operation, Object[] parameters) Creates a new ProjectionOperation.ExpressionProjectionOperationBuilder for the given value, ProjectionOperation and parameters.

Method Summary

Modifier and Type	Method and Description
ProjectionOperation	as(String alias) Allows to specify an alias for the previous projection operation.
ProjectionOperation.ProjectionOperationBuilder	project(String operation, Object... values) Adds a generic projection for the current field.

Methods inherited from class org.springframework.data.mongodb.core.aggregation.ProjectionOperation.ProjectionOperationBuilder

divide, divide, extractDayOfMonth, extractDayOfWeek, extractDayOfYear, extractHour, extractMillisecond, extractMinute, extractMonth, extractSecond, extractWeek, extractYear, minus, minus, mod, mod, multiply, multiply, nested, plus, plus, previousOperation, toDBObject

Methods inherited from class java.lang.Object

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

Constructor Detail

ExpressionProjectionOperationBuilder

public ExpressionProjectionOperationBuilder(String expression,
                                            ProjectionOperation operation,
                                            Object[] parameters)

Creates a new ProjectionOperation.ExpressionProjectionOperationBuilder for the given value, ProjectionOperation and parameters.

Parameters:

expression - must not be null.

operation - must not be null.

parameters -

Method Detail

project

public ProjectionOperation.ProjectionOperationBuilder project(String operation,
                                                              Object... values)

Description copied from class: ProjectionOperation.ProjectionOperationBuilder

Adds a generic projection for the current field.

Overrides:

project in class ProjectionOperation.ProjectionOperationBuilder

Parameters:

operation - the operation key, e.g. $add.

values - the values to be set for the projection operation.

Returns:

as

public ProjectionOperation as(String alias)

Description copied from class: ProjectionOperation.ProjectionOperationBuilder

Allows to specify an alias for the previous projection operation.

Overrides:

as in class ProjectionOperation.ProjectionOperationBuilder

Parameters:

alias - will never be null or empty.

Returns: