public static class ScriptOperators.Function extends Object
ScriptOperators.Function
defines a custom aggregation
$function in JavaScript.
{
$function: {
body: ...,
args: ...,
lang: "js"
}
}
ScriptOperators.Function
cannot be used as part of schema
validation query expression. Modifier and Type | Class and Description |
---|---|
protected static class |
AbstractAggregationExpression.Expand
Expand a nested list of values to single entries or keep the list.
|
Modifier and Type | Method and Description |
---|---|
protected List<Object> |
append(Object value) |
protected List<Object> |
append(Object value,
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 . |
ScriptOperators.Function |
args(List<Object> args)
Set the arguments passed to the function body.
|
ScriptOperators.Function |
args(Object... args)
Set the arguments passed to the function body.
|
protected Map<String,Object> |
argumentMap()
Get the argument map.
|
protected static List<Field> |
asFields(String... fieldRefs) |
protected boolean |
contains(Object key)
Check if the given key is available.
|
static ScriptOperators.Function |
function(String body)
Create a new
ScriptOperators.Function with the given function definition. |
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() |
ScriptOperators.Function |
lang(String lang)
The language used in the body.
|
protected Map<String,Object> |
remove(String key) |
org.bson.Document |
toDocument(AggregationOperationContext context)
|
org.bson.Document |
toDocument(Object value,
AggregationOperationContext context) |
protected List<Object> |
values() |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
from, toDocument
create, create
public static ScriptOperators.Function function(String body)
ScriptOperators.Function
with the given function definition.body
- must not be null.ScriptOperators.Function
.public ScriptOperators.Function args(Object... args)
args
- the arguments passed to the function body. Leave empty if the function does not take any arguments.ScriptOperators.Function
.public ScriptOperators.Function args(List<Object> args)
args
- the arguments passed to the function body. Leave empty if the function does not take any arguments.ScriptOperators.Function
.public ScriptOperators.Function lang(String lang)
lang
- must not be null nor empty.ScriptOperators.Function
.protected String getMongoMethod()
public org.bson.Document toDocument(AggregationOperationContext context)
AggregationExpression
toDocument
in interface AggregationExpression
context
- must not be null.Document
) form of the expression.public org.bson.Document toDocument(Object value, AggregationOperationContext context)
protected List<Object> append(Object value, AbstractAggregationExpression.Expand expandList)
protected Map<String,Object> appendAt(int index, String key, Object value)
LinkedHashMap
.index
- key
- value
- protected <T> T get(int index)
T
- index
- protected <T> T get(Object key)
T
- key
- protected boolean contains(Object key)
key
- Copyright © 2011–2021 Pivotal Software, Inc.. All rights reserved.