Package dev.morphia.aggregation.expressions.impls

@NonNullApi package dev.morphia.aggregation.expressions.impls

Implementations of the various expressions in the aggregation framework. Access to these types is provided by the factory methods.

See Also:

• dev.morphia.aggregation.expressions

Related Packages

Package	Description
dev.morphia.aggregation.expressions	Defines factory classes for accessing the various expressions in the aggregation framework.

Class	Description
AccumulatorExpression
ArrayIndexExpression	Searches an array for an occurrence of a specified value and returns the array index of the first occurrence.
CalculusExpression	Common type for $derivative and $integral
ConvertExpression	Converts a value to a specified type.
ConvertType	Defines target types for doing type conversions.
DateDeltaExpression	Changes a Date object by a specified number of time units.
DateDiffExpression	Returns the difference between two dates.
DateFromParts	Constructs and returns a Date object given the date’s constituent properties.
DateFromString	Converts a date/time string to a date object.
DateToParts	Returns a document that contains the constituent parts of a given BSON Date value as individual properties.
DateToString	Returns the date as a formatted string.
DateTruncExpression	Truncates a date.
DocumentExpression	Defines a document expression
Expression	Base class for all the expression types.
FilterExpression
GetFieldExpression	Returns the value of a specified field from a document.
IfNull	Evaluates an expression and returns the value of the expression if the expression evaluates to a non-null value.
IndexExpression	Defines the $indexOfBytes expression
IsoDates	Reusable type for ISO Date related expressions.
LetExpression	Binds variables for use in the specified expression, and returns the result of the expression.
LogicalExpression	Defines a logical expression.
MapExpression	Applies a subexpression to each element of an array and returns the array of resulting values in order.
MergeObjects	Defines the values to be merged.
Push	Returns an array of all values that result from applying an expression to each document in a group of documents that share the same group by key.
RangeExpression	Outputs an array containing a sequence of integers according to user-defined inputs.
RegexExpression	Applies a regular expression (regex) to a string.
SliceExpression	Returns a subset of an array.
SwitchExpression	Evaluates a series of case expressions.
TrimExpression	Removes whitespace or the specified characters from a string.
ZipExpression	Merge two arrays together.