public static class StringOperators.LTrim extends Object
AggregationExpression
for $ltrim
which removes whitespace or the specified characters from the
beginning of a string. 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 . |
protected Map<String,Object> |
argumentMap()
Get the argument map.
|
protected static List<Field> |
asFields(String... fieldRefs) |
StringOperators.LTrim |
chars(String chars)
Optional specify the character(s) to trim from the beginning.
|
StringOperators.LTrim |
charsOf(AggregationExpression expression)
Optional specify the
AggregationExpression evaluating to the character sequence to trim from the
beginning. |
StringOperators.LTrim |
charsOf(String fieldReference)
Optional specify the reference to the
field holding the character values to trim from the
beginning. |
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 Map<String,Object> |
remove(String key) |
org.bson.Document |
toDocument(AggregationOperationContext context)
|
org.bson.Document |
toDocument(Object value,
AggregationOperationContext context) |
static StringOperators.LTrim |
valueOf(AggregationExpression expression)
Creates new
StringOperators.LTrim using the result of the provided AggregationExpression as input
value. |
static StringOperators.LTrim |
valueOf(String fieldReference)
Creates new
StringOperators.LTrim using the value of the provided fieldReference as input value. |
protected List<Object> |
values() |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
from, toDocument
create, create
public static StringOperators.LTrim valueOf(String fieldReference)
StringOperators.LTrim
using the value of the provided fieldReference
as input value.fieldReference
- must not be null.StringOperators.LTrim
.public static StringOperators.LTrim valueOf(AggregationExpression expression)
StringOperators.LTrim
using the result of the provided AggregationExpression
as input
value.expression
- must not be null.StringOperators.LTrim
.public StringOperators.LTrim chars(String chars)
chars
- must not be null.StringOperators.LTrim
.public StringOperators.LTrim charsOf(String fieldReference)
field
holding the character values to trim from the
beginning.fieldReference
- must not be null.StringOperators.LTrim
.public StringOperators.LTrim charsOf(AggregationExpression expression)
AggregationExpression
evaluating to the character sequence to trim from the
beginning.expression
- must not be null.StringOperators.LTrim
.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
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