Package org.springframework.data.mongodb.core.aggregation

Class ExposedFields

java.lang.Object

org.springframework.data.mongodb.core.aggregation.ExposedFields

All Implemented Interfaces:

Iterable<org.springframework.data.mongodb.core.aggregation.ExposedFields.ExposedField>

public final class ExposedFields
extends Object
implements Iterable<org.springframework.data.mongodb.core.aggregation.ExposedFields.ExposedField>

Value object to capture the fields exposed by an AggregationOperation.

Since:

1.3

Author:

Oliver Gierke, Thomas Darimont, Mark Paluch

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	ExposedFields.FieldReference	A reference to an ExposedFields.ExposedField.

Method Summary

Modifier and Type	Method	Description
ExposedFields	and(org.springframework.data.mongodb.core.aggregation.ExposedFields.ExposedField field)	Creates a new ExposedFields adding the given ExposedFields.ExposedField.
static ExposedFields	empty()	Returns an empty ExposedFields instance.
static ExposedFields	from(org.springframework.data.mongodb.core.aggregation.ExposedFields.ExposedField... fields)	Creates a new ExposedFields instance from the given ExposedFields.ExposedFields.
org.springframework.data.mongodb.core.aggregation.ExposedFields.ExposedField	getField(String name)	Returns the field with the given name or null if no field with the given name is available.
Iterator<org.springframework.data.mongodb.core.aggregation.ExposedFields.ExposedField>	iterator()
static ExposedFields	nonSynthetic(Fields fields)	Creates non-synthetic ExposedFields from the given Fields.
static ExposedFields	synthetic(Fields fields)	Creates synthetic ExposedFields from the given Fields.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Method Details

empty

public static ExposedFields empty()

Returns an empty ExposedFields instance.

Returns:

never null.

Since:

2.0

from

public static ExposedFields from(org.springframework.data.mongodb.core.aggregation.ExposedFields.ExposedField... fields)

Creates a new ExposedFields instance from the given ExposedFields.ExposedFields.

Parameters:

fields - must not be null.

Returns:

never null.

synthetic

public static ExposedFields synthetic(Fields fields)

Creates synthetic ExposedFields from the given Fields.

Parameters:

fields - must not be null.

Returns:

never null.

nonSynthetic

public static ExposedFields nonSynthetic(Fields fields)

Creates non-synthetic ExposedFields from the given Fields.

Parameters:

fields - must not be null.

Returns:

never null.

and

public ExposedFields and(org.springframework.data.mongodb.core.aggregation.ExposedFields.ExposedField field)

Creates a new ExposedFields adding the given ExposedFields.ExposedField.

Parameters:

field - must not be null.

Returns:

new instance of ExposedFields.

getField

@Nullable
public org.springframework.data.mongodb.core.aggregation.ExposedFields.ExposedField getField(String name)

Returns the field with the given name or null if no field with the given name is available.

Parameters:

name - must not be null.

Returns:

can be null.

iterator

public Iterator<org.springframework.data.mongodb.core.aggregation.ExposedFields.ExposedField> iterator()

Specified by:

iterator in interface Iterable<org.springframework.data.mongodb.core.aggregation.ExposedFields.ExposedField>