Package dev.morphia.aggregation.expressions.impls

Class ExpressionList

java.lang.Object

dev.morphia.aggregation.expressions.impls.Expression

dev.morphia.aggregation.expressions.impls.ExpressionList

All Implemented Interfaces:

SingleValuedExpression

@MorphiaInternal
public class ExpressionList
extends Expression
implements SingleValuedExpression

Wraps a list of expressions as an Expression so we can generically deal with all values as Expressions

Since:

2.3

Developer note.

This is an internal item. Its function and presence are subject to change without warning. Its use is highly discouraged.

Constructor Summary

Constructors

Constructor	Description
ExpressionList(Expression... values)
ExpressionList(List<Expression> values)

Method Summary

Modifier and Type	Method	Description
void	add(Expression expression)
static ExpressionList	coalesce(Expression first, Expression... values)
void	encode(Datastore datastore, BsonWriter writer, EncoderContext encoderContext)
Expression	getValue()
List<Expression>	getValues()

Methods inherited from class dev.morphia.aggregation.expressions.impls.Expression

getOperation, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ExpressionList

public ExpressionList(List<Expression> values)

ExpressionList

public ExpressionList(Expression... values)

Method Detail

coalesce

@NonNull
public static ExpressionList coalesce(Expression first,
                                      Expression... values)

add

public void add(Expression expression)

encode

public void encode(Datastore datastore,
                   BsonWriter writer,
                   EncoderContext encoderContext)

Overrides:

encode in class Expression

Parameters:

datastore - the datastore

writer - the writer

encoderContext - the context

getValue

public Expression getValue()

Overrides:

getValue in class Expression

Returns:

the value

getValues

@NonNull
public List<Expression> getValues()