public static class ArithmeticOperators.Subtract extends Object
AggregationExpression
for $subtract
.protected String getMongoMethod()
public static ArithmeticOperators.Subtract valueOf(String fieldReference)
ArithmeticOperators.Subtract
.fieldReference
- must not be null.public static ArithmeticOperators.Subtract valueOf(AggregationExpression expression)
ArithmeticOperators.Subtract
.expression
- must not be null.public static ArithmeticOperators.Subtract valueOf(Number value)
ArithmeticOperators.Subtract
.value
- must not be null.public ArithmeticOperators.Subtract subtract(String fieldReference)
public ArithmeticOperators.Subtract subtract(AggregationExpression expression)
public ArithmeticOperators.Subtract subtract(Number value)
public org.bson.Document toDocument(AggregationOperationContext context)
AggregationExpression
toDocument
in interface AggregationExpression
public org.bson.Document toDocument(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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