org.apache.parquet.format.event

Class Consumers

java.lang.Object

org.apache.parquet.format.event.Consumers

public class Consumers
extends Object

Entry point for reading thrift in a streaming fashion

Author:

Julien Le Dem

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	Consumers.Consumer<T> To consume objects coming from a DelegatingFieldConsumer
static class	Consumers.DelegatingFieldConsumer Delegates reading the field to TypedConsumers.

Constructor Summary

Constructors

Constructor and Description
Consumers()

Method Summary

Methods

Modifier and Type	Method and Description
static Consumers.DelegatingFieldConsumer	fieldConsumer() call onField on the resulting DelegatingFieldConsumer to handle individual fields
static TypedConsumer.ListConsumer	listElementsOf(TypedConsumer consumer) To consume list elements one by one
static <T extends org.apache.thrift.TBase<T,? extends org.apache.thrift.TFieldIdEnum>> TypedConsumer.ListConsumer	listOf(Class<T> c, Consumers.Consumer<List<T>> consumer) To consume a list of elements
static <T extends org.apache.thrift.TBase<T,? extends org.apache.thrift.TFieldIdEnum>> TypedConsumer.StructConsumer	struct(Class<T> c, Consumers.Consumer<T> consumer)

Methods inherited from class java.lang.Object

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

Constructor Detail

Consumers

public Consumers()

Method Detail

fieldConsumer

public static Consumers.DelegatingFieldConsumer fieldConsumer()

call onField on the resulting DelegatingFieldConsumer to handle individual fields

Returns:

a new DelegatingFieldConsumer

listOf

public static <T extends org.apache.thrift.TBase<T,? extends org.apache.thrift.TFieldIdEnum>> TypedConsumer.ListConsumer listOf(Class<T> c,
                                                                                                                Consumers.Consumer<List<T>> consumer)

To consume a list of elements

Parameters:

c - the type of the list content

consumer - the consumer that will receive the list

Returns:

a ListConsumer that can be passed to the DelegatingFieldConsumer

listElementsOf

public static TypedConsumer.ListConsumer listElementsOf(TypedConsumer consumer)

To consume list elements one by one

Parameters:

consumer - the consumer that will read the elements

Returns:

a ListConsumer that can be passed to the DelegatingFieldConsumer

struct

public static <T extends org.apache.thrift.TBase<T,? extends org.apache.thrift.TFieldIdEnum>> TypedConsumer.StructConsumer struct(Class<T> c,
                                                                                                                  Consumers.Consumer<T> consumer)