public static class ArrayOperators.ConcatArrays extends Object
AggregationExpression
for $concatArrays
.Modifier and Type | Method and Description |
---|---|
protected List<Object> |
append(Object value) |
protected Map<String,Object> |
append(String key,
Object value) |
protected Map<String,Object> |
argumentMap()
Get the argument map.
|
static ArrayOperators.ConcatArrays |
arrayOf(AggregationExpression expression)
Creates new
ArrayOperators.ConcatArrays . |
static ArrayOperators.ConcatArrays |
arrayOf(String fieldReference)
Creates new
ArrayOperators.ConcatArrays . |
protected static List<Field> |
asFields(String... fieldRefs) |
ArrayOperators.ConcatArrays |
concat(AggregationExpression expression) |
ArrayOperators.ConcatArrays |
concat(String arrayFieldReference) |
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() |
com.mongodb.DBObject |
toDbObject(AggregationOperationContext context)
|
com.mongodb.DBObject |
toDbObject(Object value,
AggregationOperationContext context) |
protected List<Object> |
values() |
protected String getMongoMethod()
public static ArrayOperators.ConcatArrays arrayOf(String fieldReference)
ArrayOperators.ConcatArrays
.fieldReference
- must not be null.public static ArrayOperators.ConcatArrays arrayOf(AggregationExpression expression)
ArrayOperators.ConcatArrays
.expression
- must not be null.public ArrayOperators.ConcatArrays concat(String arrayFieldReference)
public ArrayOperators.ConcatArrays concat(AggregationExpression expression)
public com.mongodb.DBObject toDbObject(AggregationOperationContext context)
AggregationExpression
toDbObject
in interface AggregationExpression
public com.mongodb.DBObject toDbObject(Object value, AggregationOperationContext context)
protected <T> T get(int index)
T
- index
- protected <T> T get(Object key)
T
- key
- protected boolean contains(Object key)
key
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