ConvertExpression (Morphia)

java.lang.Object
- dev.morphia.aggregation.experimental.expressions.impls.Expression
- - dev.morphia.aggregation.experimental.expressions.impls.ConvertExpression

public class ConvertExpression
extends Expression

Constructor Summary

Constructors
Constructor Description

ConvertExpression(Expression input, ConvertType to)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`encode(Mapper mapper, org.bson.BsonWriter writer, org.bson.codecs.EncoderContext encoderContext)`
`ConvertExpression`	`onError(Expression onError)`	The value to return on encountering an error during conversion, including unsupported type conversions.
`ConvertExpression`	`onNull(Expression onNull)`	The value to return if the input is null or missing.

Methods inherited from class dev.morphia.aggregation.experimental.expressions.impls.Expression
getOperation, getValue, toString

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - ConvertExpression
```
public ConvertExpression(Expression input,
                         ConvertType to)
```
- Method Detail
  - encode
```
public void encode(Mapper mapper,
                   org.bson.BsonWriter writer,
                   org.bson.codecs.EncoderContext encoderContext)
```
    Overrides:
    
    encode in class Expression
    
    Parameters:
    
    mapper - the mapper
    
    writer - the writer
    
    encoderContext - the context
  - onError
```
public ConvertExpression onError(Expression onError)
```
    The value to return on encountering an error during conversion, including unsupported type conversions.
    
    Parameters:
    
    onError - the value
    
    Returns:
    
    this
  - onNull
```
public ConvertExpression onNull(Expression onNull)
```
    The value to return if the input is null or missing.
    
    Parameters:
    
    onNull - the value
    
    Returns:
    
    this