Class ArrayOperators.ArrayElemAt
java.lang.Object
org.springframework.data.mongodb.core.aggregation.ArrayOperators.ArrayElemAt
- All Implemented Interfaces:
AggregationExpression
,MongoExpression
- Enclosing class:
- ArrayOperators
AggregationExpression
for $arrayElementAt
.- Author:
- Christoph Strobl
-
Method Summary
Modifier and TypeMethodDescriptionappend
(Object value, org.springframework.data.mongodb.core.aggregation.AbstractAggregationExpression.Expand expandList) Append the given key at the position in the underlyingLinkedHashMap
.Get the argument map.static ArrayOperators.ArrayElemAt
Creates newArrayOperators.ArrayElemAt
.static ArrayOperators.ArrayElemAt
arrayOf
(Collection<?> values) Creates newArrayOperators.ArrayElemAt
.static ArrayOperators.ArrayElemAt
arrayOf
(AggregationExpression expression) Creates newArrayOperators.ArrayElemAt
.protected boolean
Check if the given key is available.elementAt
(int index) Use the element with given index number.Use the element at the index number taken from the given field.elementAt
(AggregationExpression expression) Use the element at the index number evaluated from the givenAggregationExpression
.protected <T> T
get
(int index) Get the value at a given index.protected <T> T
Get the value for a given key.protected String
protected boolean
org.bson.Document
toDocument
(Object value, AggregationOperationContext context) org.bson.Document
toDocument
(AggregationOperationContext context) 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
-
arrayOf
Creates newArrayOperators.ArrayElemAt
.- Parameters:
fieldReference
- must not be null.- Returns:
- new instance of
ArrayOperators.ArrayElemAt
.
-
arrayOf
Creates newArrayOperators.ArrayElemAt
.- Parameters:
expression
- must not be null.- Returns:
- new instance of
ArrayOperators.ArrayElemAt
.
-
arrayOf
Creates newArrayOperators.ArrayElemAt
.- Parameters:
values
- The array members. Must not be null.- Returns:
- new instance of
ArrayOperators.ArrayElemAt
. - Since:
- 2.2
-
elementAt
Use the element with given index number.- Parameters:
index
- the index number- Returns:
- new instance of
ArrayOperators.ArrayElemAt
.
-
elementAt
Use the element at the index number evaluated from the givenAggregationExpression
.- Parameters:
expression
- must not be null.- Returns:
- new instance of
ArrayOperators.ArrayElemAt
.
-
elementAt
Use the element at the index number taken from the given field.- Parameters:
arrayFieldReference
- the field name.- Returns:
- new instance of
ArrayOperators.ArrayElemAt
.
-
toDocument
Description copied from interface:AggregationExpression
- Specified by:
toDocument
in interfaceAggregationExpression
- Parameters:
context
- must not be null.- Returns:
- the MongoDB native (
Document
) form of the expression.
-
toDocument
-
asFields
-
append
-
append
-
append
-
appendTo
-
remove
-
appendAt
Append the given key at the position in the underlyingLinkedHashMap
.- Parameters:
index
-key
-value
-- Returns:
- Since:
- 3.1
-
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
Get the value for a given key.- Type Parameters:
T
-- Parameters:
key
-- Returns:
- Since:
- 2.1
-
isArgumentMap
protected boolean isArgumentMap() -
argumentMap
Get the argument map.- Returns:
- Since:
- 2.1
-
contains
Check if the given key is available.- Parameters:
key
-- Returns:
- Since:
- 2.1
-