Module spring.data.mongodb

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

Class StringOperators.Concat

java.lang.Object

org.springframework.data.mongodb.core.aggregation.StringOperators.Concat

All Implemented Interfaces:

AggregationExpression, MongoExpression

Enclosing class:

StringOperators

public static class StringOperators.Concat
extends Object

AggregationExpression for $concat.

Author:

Christoph Strobl

Method Summary

Modifier and Type	Method	Description
protected List<Object>	append(Object value)
protected List<Object>	append(Object value, org.springframework.data.mongodb.core.aggregation.AbstractAggregationExpression.Expand expandList)
protected Map<String,Object>	append(String key, Object value)
protected Map<String,Object>	appendAt(int index, String key, Object value)	Append the given key at the position in the underlying LinkedHashMap.
protected Map<String,Object>	appendTo(String key, Object value)
protected Map<String,Object>	argumentMap()	Get the argument map.
protected static List<Field>	asFields(String... fieldRefs)
StringOperators.Concat	concat(String value)	Concat the given value.
StringOperators.Concat	concatValueOf(String fieldReference)	Concat the value of the given field.
StringOperators.Concat	concatValueOf(AggregationExpression expression)	Concat the value resulting from the given AggregationExpression.
protected boolean	contains(Object key)	Check if the given key is available.
protected <T> T	get(int index)	Get the value at a given index.
protected <T> T	get(Object key)	Get the value for a given key.
protected String	getMongoMethod()
protected boolean	isArgumentMap()
protected Map<String,Object>	remove(String key)
static StringOperators.Concat	stringValue(String value)	Creates new StringOperators.Concat.
org.bson.Document	toDocument(Object value, AggregationOperationContext context)
org.bson.Document	toDocument(AggregationOperationContext context)	Turns the AggregationExpression into a Document within the given AggregationOperationContext.
static StringOperators.Concat	valueOf(String fieldReference)	Creates new StringOperators.Concat.
static StringOperators.Concat	valueOf(AggregationExpression expression)	Creates new StringOperators.Concat.
protected List<Object>	values()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.springframework.data.mongodb.core.aggregation.AggregationExpression

toDocument

Method Details

getMongoMethod

protected String getMongoMethod()

valueOf

public static StringOperators.Concat valueOf(String fieldReference)

Creates new StringOperators.Concat.

Parameters:

fieldReference - must not be null.

Returns:

new instance of StringOperators.Concat.

valueOf

public static StringOperators.Concat valueOf(AggregationExpression expression)

Creates new StringOperators.Concat.

Parameters:

expression - must not be null.

Returns:

new instance of StringOperators.Concat.

stringValue

public static StringOperators.Concat stringValue(String value)

Creates new StringOperators.Concat.

Parameters:

value - must not be null.

Returns:

new instance of StringOperators.Concat.

concatValueOf

public StringOperators.Concat concatValueOf(String fieldReference)

Concat the value of the given field.

Parameters:

fieldReference - must not be null.

Returns:

new instance of StringOperators.Concat.

concatValueOf

public StringOperators.Concat concatValueOf(AggregationExpression expression)

Concat the value resulting from the given AggregationExpression.

Parameters:

expression - must not be null.

Returns:

new instance of StringOperators.Concat.

concat

public StringOperators.Concat concat(String value)

Concat the given value.

Parameters:

value - must not be null.

Returns:

new instance of StringOperators.Concat.

toDocument

public org.bson.Document toDocument(AggregationOperationContext context)

Description copied from interface: AggregationExpression

Turns the AggregationExpression into a Document within the given AggregationOperationContext.

Specified by:

toDocument in interface AggregationExpression

Parameters:

context - must not be null.

Returns:

the MongoDB native (Document) form of the expression.

toDocument

public org.bson.Document toDocument(Object value,
 AggregationOperationContext context)

asFields

protected static List<Field> asFields(String... fieldRefs)

append

protected List<Object> append(Object value,
 org.springframework.data.mongodb.core.aggregation.AbstractAggregationExpression.Expand expandList)

append

protected List<Object> append(Object value)

append

protected Map<String,Object> append(String key,
 Object value)

appendTo

protected Map<String,Object> appendTo(String key,
 Object value)

remove

protected Map<String,Object> remove(String key)

appendAt

protected Map<String,Object> appendAt(int index,
 String key,
 Object value)

Append the given key at the position in the underlying LinkedHashMap.

Parameters:

index -

key -

value -

Returns:

Since:

3.1

values

protected List<Object> values()

get

protected <T> T get(int index)

Get the value at a given index.

Type Parameters:

T -

Parameters:

index -

Returns:

Since:

2.1

get

protected <T> T get(Object key)

Get the value for a given key.

Type Parameters:

T -

Parameters:

key -

Returns:

Since:

2.1

isArgumentMap

protected boolean isArgumentMap()

argumentMap

protected Map<String,Object> argumentMap()

Get the argument map.

Returns:

Since:

2.1

contains

protected boolean contains(Object key)

Check if the given key is available.

Parameters:

key -

Returns:

Since:

2.1