io.committed.invest.core.dto.collections

Class PropertiesMap

java.lang.Object

io.committed.invest.core.dto.collections.PropertiesMap

public final class PropertiesMap
extends Object

A map of string-value properties.

GraphQL has no support for maps, and typically a map like object will get convented to a list of key, value. In the value of generic object value its very difficult for GraphQL to know what to do with the object. it becomes an ObjectScalar (raw JSON). This works for querying but not for input.

We introduce here a PropertiesMap which we manage the serialisation for as a dedicated scalar. It is really a LinkedHashMap which mirrors the map-like / list-like constructs we'd expect in Java / GraphQL representations.

Developers should use this in GraphQL 'dtos' wherever they'd normally wish to use a Map<String,Object>.

Constructor Summary

Constructors

Constructor and Description
PropertiesMap()
PropertiesMap(Collection<Property> list)
PropertiesMap(Map<String,Object> map)

Method Summary

Modifier and Type	Method and Description
void	add(Property property)
void	add(String key, Object value)
Map<String,Object>	asMap()
boolean	equals(Object obj)
reactor.core.publisher.Flux<Map.Entry<String,Object>>	flux()
<T> T	get(String key, T defaultValue) Gets value of key if present and it the same right as default
int	hashCode()
boolean	isEmpty()
Stream<Map.Entry<String,Object>>	stream()

Methods inherited from class java.lang.Object

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

Constructor Detail

PropertiesMap

public PropertiesMap()

PropertiesMap

public PropertiesMap(Collection<Property> list)

PropertiesMap

public PropertiesMap(Map<String,Object> map)

Method Detail

add

public void add(String key,
                Object value)

add

public void add(Property property)

stream

public Stream<Map.Entry<String,Object>> stream()

flux

public reactor.core.publisher.Flux<Map.Entry<String,Object>> flux()

isEmpty

public boolean isEmpty()

asMap

public Map<String,Object> asMap()

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

get

public <T> T get(String key,
                 T defaultValue)

Gets value of key if present and it the same right as default

Type Parameters:

T - the generic type

Parameters:

key - the key

defaultValue - (do not use null!_

Returns:

the t