Package io.micronaut.core.convert.converters

Class MultiValuesConverterFactory

java.lang.Object

io.micronaut.core.convert.converters.MultiValuesConverterFactory

public class MultiValuesConverterFactory
extends Object

A factory for creation of various FormattingTypeConverters to and from ConvertibleMultiValues type. The other types are either Iterable or Map or POJO Object. The converters only work when an ArgumentConversionContext is provided (so the type is an argument), as the name of the parameter needs to be retrieved from there. Also Format annotation is required and needs to have one of the below-mentioned formats: "csv", "ssv", "pipes", "multi", "deep-object". The format can be written in any case, e.g. "DEEP_OBJECT", "deep-object".

Since:

3.0.0

Author:

Andriy Dmytruk

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	MultiValuesConverterFactory.AbstractConverterToMultiValues<T>	An abstract class to convert to ConvertibleMultiValues.
static class	MultiValuesConverterFactory.IterableToMultiValuesConverter	A converter from Iterable to ConvertibleMultiValues.
static class	MultiValuesConverterFactory.MapToMultiValuesConverter	A converter from Map to ConvertibleMultiValues.
static class	MultiValuesConverterFactory.MultiValuesToIterableConverter	A converter to convert from ConvertibleMultiValues to an Iterable.
static class	MultiValuesConverterFactory.MultiValuesToMapConverter	A converter to convert from ConvertibleMultiValues to an Map.
static class	MultiValuesConverterFactory.MultiValuesToObjectConverter	A converter to convert from ConvertibleMultiValues to a POJO Object.
static class	MultiValuesConverterFactory.ObjectToMultiValuesConverter	A converter from generic Object to ConvertibleMultiValues.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	FORMAT_CSV	Values separated with commas ",".
static final String	FORMAT_DEEP_OBJECT	Values are put in the representation with property name for Map and POJO Object in square after the original parameter name.
static final String	FORMAT_MULTI	Values are repeated with the same parameter name for Iterable, while Map and POJO Object would be expanded with its property names.
static final String	FORMAT_PIPES	Values separated with the pipe "|" symbol similarly to CSV being separated with commas.
static final String	FORMAT_SSV	Values separated with spaces " " similarly to CSV being separated with commas.

Constructor Summary

Constructors

Constructor	Description
MultiValuesConverterFactory()

Method Summary

Methods inherited from class java.lang.Object

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

Field Details

FORMAT_CSV

public static final String FORMAT_CSV

Values separated with commas ",". In case of iterables, the values are converted to String and joined with comma delimiter. In case of Map or a POJO Object the keys and values are alternating and all delimited with commas.

Examples

Type	Example value	Example representation
Iterable	param=["Mike", "Adam", "Kate"]	"param=Mike,Adam,Kate"
Map	param=["name": "Mike", "age": "30"]	"param=name,Mike,age,30"
Object	param={name: "Mike", age: 30}	"param=name,Mike,age,30"

Note that ambiguity may arise when the values contain commas themselves after being converted to String.

See Also:

• Constant Field Values

FORMAT_SSV

public static final String FORMAT_SSV

Values separated with spaces " " similarly to CSV being separated with commas.

See Also:

• Constant Field Values

FORMAT_PIPES

public static final String FORMAT_PIPES

Values separated with the pipe "|" symbol similarly to CSV being separated with commas.

See Also:

• Constant Field Values

FORMAT_MULTI

public static final String FORMAT_MULTI

Values are repeated with the same parameter name for Iterable, while Map and POJO Object would be expanded with its property names.

Examples

Type	Example value	Example representation
Iterable	param=["Mike", "Adam", "Kate"]	"param=Mike&param=Adam&param=Kate
Map	param=["name": "Mike", "age": "30"]	"name=Mike&age=30"
Object	param={name: "Mike", age: 30}	"name=Mike&age=30"

See Also:

• Constant Field Values

FORMAT_DEEP_OBJECT

public static final String FORMAT_DEEP_OBJECT

Values are put in the representation with property name for Map and POJO Object in square after the original parameter name.

Examples

Type	Example value	Example representation
Iterable	param=["Mike", "Adam", "Kate"]	"param[0]=Mike&param[1]=Adam&param[2]=Kate
Map	param=["name": "Mike", "age": "30"]	"param[name]=Mike&param[age]=30"
Object	param={name: "Mike", age: 30}	"param[name]=Mike&param[age]=30"

See Also:

• Constant Field Values

Constructor Details

MultiValuesConverterFactory

public MultiValuesConverterFactory()