Package org.elasticsearch.common.xcontent

Class ParseFieldRegistry<T>

java.lang.Object

org.elasticsearch.common.xcontent.ParseFieldRegistry<T>

public class ParseFieldRegistry<T>
extends Object

Registry for looking things up using ParseField semantics.

Constructor Summary

Constructors

Constructor	Description
ParseFieldRegistry(String registryName)	Build the registry.

Method Summary

Modifier and Type	Method	Description
Set<String>	getNames()	All the names under which values are registered.
T	lookup(String name, XContentLocation xContentLocation, DeprecationHandler deprecationHandler)	Lookup a value from the registry by name while checking that the name matches the ParseField.
T	lookupReturningNullIfNotFound(String name, DeprecationHandler deprecationHandler)	Lookup a value from the registry by name while checking that the name matches the ParseField.
void	register(T value, String name)	Register a parser.
void	register(T value, ParseField parseField)	Register a parser.

Methods inherited from class java.lang.Object

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

Constructor Detail

ParseFieldRegistry

public ParseFieldRegistry(String registryName)

Build the registry.

Parameters:

registryName - used for error messages

Method Detail

getNames

public Set<String> getNames()

All the names under which values are registered. Expect this to be used mostly for testing.

register

public void register(T value,
                     String name)

Register a parser.

register

public void register(T value,
                     ParseField parseField)

Register a parser.

lookup

public T lookup(String name,
                XContentLocation xContentLocation,
                DeprecationHandler deprecationHandler)

Lookup a value from the registry by name while checking that the name matches the ParseField.

Parameters:

name - The name of the thing to look up.

Returns:

The value being looked up. Never null.

Throws:

ParsingException - if the named thing isn't in the registry or the name was deprecated and deprecated names aren't supported.

lookupReturningNullIfNotFound

public T lookupReturningNullIfNotFound(String name,
                                       DeprecationHandler deprecationHandler)

Lookup a value from the registry by name while checking that the name matches the ParseField.

Parameters:

name - The name of the thing to look up.

Returns:

The value being looked up or null if it wasn't found.

Throws:

ParsingException - if the named thing isn't in the registry or the name was deprecated and deprecated names aren't supported.