com.zackehh.jackson.stream.collectors

Class ArrayNodeCollector

java.lang.Object

com.zackehh.jackson.stream.collectors.ArrayNodeCollector

All Implemented Interfaces:

Collector<com.fasterxml.jackson.databind.JsonNode,com.fasterxml.jackson.databind.node.ArrayNode,com.fasterxml.jackson.databind.node.ArrayNode>

public class ArrayNodeCollector
extends Object
implements Collector<com.fasterxml.jackson.databind.JsonNode,com.fasterxml.jackson.databind.node.ArrayNode,com.fasterxml.jackson.databind.node.ArrayNode>

Collector to collect a Stream of JsonNode instance into a new ArrayNode instance. Even though this class could operate on arbitrary types by coercing values into JsonNode instance, it's better to enforce explicitness in pipelines as it raises error handling into the userland layer.

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.stream.Collector

Collector.Characteristics

Constructor Summary

Constructors

Constructor and Description
ArrayNodeCollector()

Method Summary

Modifier and Type	Method and Description
BiConsumer<com.fasterxml.jackson.databind.node.ArrayNode,com.fasterxml.jackson.databind.JsonNode>	accumulator() Returns a BiConsumer which adds a pre-created JsonNode into the ArrayNode instance provided by the Supplier.
Set<Collector.Characteristics>	characteristics() Returns a Set of Characteristics to apply to this Collector.
BinaryOperator<com.fasterxml.jackson.databind.node.ArrayNode>	combiner() Returns an operator which combines two ArrayNode instances by adding all JsonNode values from the right instance into the left instance.
Function<com.fasterxml.jackson.databind.node.ArrayNode,com.fasterxml.jackson.databind.node.ArrayNode>	finisher() Returns a Function to identify the input.
Supplier<com.fasterxml.jackson.databind.node.ArrayNode>	supplier() Simply returns a Supplier which creates a new empty ArrayNode instance in order to collect JsonNode values into.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.stream.Collector

of, of

Constructor Detail

ArrayNodeCollector

public ArrayNodeCollector()

Method Detail

supplier

public Supplier<com.fasterxml.jackson.databind.node.ArrayNode> supplier()

Simply returns a Supplier which creates a new empty ArrayNode instance in order to collect JsonNode values into.

Specified by:

supplier in interface Collector<com.fasterxml.jackson.databind.JsonNode,com.fasterxml.jackson.databind.node.ArrayNode,com.fasterxml.jackson.databind.node.ArrayNode>

accumulator

public BiConsumer<com.fasterxml.jackson.databind.node.ArrayNode,com.fasterxml.jackson.databind.JsonNode> accumulator()

Returns a BiConsumer which adds a pre-created JsonNode into the ArrayNode instance provided by the Supplier.

Specified by:

accumulator in interface Collector<com.fasterxml.jackson.databind.JsonNode,com.fasterxml.jackson.databind.node.ArrayNode,com.fasterxml.jackson.databind.node.ArrayNode>

combiner

public BinaryOperator<com.fasterxml.jackson.databind.node.ArrayNode> combiner()

Returns an operator which combines two ArrayNode instances by adding all JsonNode values from the right instance into the left instance.

Specified by:

combiner in interface Collector<com.fasterxml.jackson.databind.JsonNode,com.fasterxml.jackson.databind.node.ArrayNode,com.fasterxml.jackson.databind.node.ArrayNode>

finisher

public Function<com.fasterxml.jackson.databind.node.ArrayNode,com.fasterxml.jackson.databind.node.ArrayNode> finisher()

Returns a Function to identify the input. This is moot and not called due to the provided Characteristics.

Specified by:

finisher in interface Collector<com.fasterxml.jackson.databind.JsonNode,com.fasterxml.jackson.databind.node.ArrayNode,com.fasterxml.jackson.databind.node.ArrayNode>

characteristics

public Set<Collector.Characteristics> characteristics()

Returns a Set of Characteristics to apply to this Collector. The only one provided is that there's an identity finisher, in order to remove the call.

Specified by:

characteristics in interface Collector<com.fasterxml.jackson.databind.JsonNode,com.fasterxml.jackson.databind.node.ArrayNode,com.fasterxml.jackson.databind.node.ArrayNode>