org.trimou.engine.resolver

Class MapCustomKeyResolver

java.lang.Object

org.trimou.engine.config.AbstractConfigurationAware

org.trimou.engine.resolver.AbstractResolver

org.trimou.engine.resolver.MapCustomKeyResolver

All Implemented Interfaces:

ConfigurationAware, WithPriority, EnhancedResolver, Resolver

public abstract class MapCustomKeyResolver
extends AbstractResolver

Abstract resolver for maps with custom key types.

Author:

Martin Kouba

Nested Class Summary

Nested classes/interfaces inherited from interface org.trimou.engine.resolver.EnhancedResolver

EnhancedResolver.Hint

Field Summary

Fields inherited from class org.trimou.engine.config.AbstractConfigurationAware

configuration

Fields inherited from interface org.trimou.engine.resolver.Resolver

DEFAULT_PRIORITY

Constructor Summary

Constructors

Constructor and Description
MapCustomKeyResolver(int priority)

Method Summary

Modifier and Type	Method and Description
protected abstract Object	convert(String name)
protected abstract boolean	matches(String name)
Object	resolve(Object contextObject, String name, ResolutionContext context) Resolve the value from specified context object and name.

Methods inherited from class org.trimou.engine.resolver.AbstractResolver

createHint, getPriority, toString

Methods inherited from class org.trimou.engine.config.AbstractConfigurationAware

checkNotInitialized, init, init

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.trimou.engine.config.ConfigurationAware

getConfigurationKeys, init

Constructor Detail

MapCustomKeyResolver

public MapCustomKeyResolver(int priority)

Method Detail

resolve

public Object resolve(Object contextObject,
                      String name,
                      ResolutionContext context)

Description copied from interface: Resolver

Resolve the value from specified context object and name. This method should return as fast as possible. The best practice is to verify params first and return null in case of the resolver is not capable of resolving it.

ResolutionContext allows to register a callback to release all the relevant resources after the resolved value is used.

Parameters:

contextObject - The current context object (aka base object), may be null

name - The name (the key or its part) is never null

context - The current resolution context

Returns:

the resolved object or null

See Also:

Placeholder.NULL

matches

protected abstract boolean matches(String name)

Parameters:

name -

Returns:

true if this resolver matches (the lookup should be performed) the given name, false otherwise

convert

protected abstract Object convert(String name)

Parameters:

name -

Returns:

the converted key