Module org.elasticsearch.server

Package org.elasticsearch.common.io.stream

Class NamedWriteableRegistry

java.lang.Object

org.elasticsearch.common.io.stream.NamedWriteableRegistry

public class NamedWriteableRegistry
extends Object

A registry for Writeable.Reader readers of NamedWriteable. The registration is keyed by the combination of the category class of NamedWriteable, and a name unique to that category.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	NamedWriteableRegistry.Entry	An entry in the registry, made up of a category class and name, and a reader for that category class.

Constructor Summary

Constructors

Constructor	Description
NamedWriteableRegistry(List<NamedWriteableRegistry.Entry> entries)	Constructs a new registry from the given entries.

Method Summary

Modifier and Type	Method	Description
<T> Writeable.Reader<? extends T>	getReader(Class<T> categoryClass, String name)	Returns a reader for a NamedWriteable object identified by the name provided as argument and its category.
static <T> Writeable.Reader<? extends T>	getReader(Class<T> categoryClass, String name, Map<String,Writeable.Reader<?>> readers)
<T> Map<String,Writeable.Reader<?>>	getReaders(Class<T> categoryClass)	Gets the readers map keyed by name for the given category
boolean	hasReaders(Class<?> categoryClass)

Methods inherited from class java.lang.Object

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

Constructor Details

NamedWriteableRegistry

public NamedWriteableRegistry(List<NamedWriteableRegistry.Entry> entries)

Constructs a new registry from the given entries.

Method Details

getReader

public <T> Writeable.Reader<? extends T> getReader(Class<T> categoryClass,
 String name)

Returns a reader for a NamedWriteable object identified by the name provided as argument and its category.

getReader

public static <T> Writeable.Reader<? extends T> getReader(Class<T> categoryClass,
 String name,
 Map<String,Writeable.Reader<?>> readers)

Parameters:

categoryClass - category of the reader

name - name of the writeable

readers - map of readers for the category

Returns:

reader for the named writable of the given name

getReaders

public <T> Map<String,Writeable.Reader<?>> getReaders(Class<T> categoryClass)

Gets the readers map keyed by name for the given category

Parameters:

categoryClass - category to get readers map for

Returns:

map of readers for the category

hasReaders

public boolean hasReaders(Class<?> categoryClass)