org.trimou.engine.resolver

Interface Resolver

All Superinterfaces:

WithPriority

All Known Implementing Classes:

AbstractResolver, ArrayIndexResolver, DateTimeFormatResolver, IndexResolver, ListIndexResolver, LocaleAwareResolver, MapResolver, NumberFormatResolver, ReflectionResolver, ResourceBundleResolver, ThisResolver

public interface Resolver
extends WithPriority

Context object resolver. Implementation must be thread-safe.

Author:

Martin Kouba

Field Summary

Fields inherited from interface org.trimou.engine.priority.WithPriority

BUILTIN_RESOLVERS_DEFAULT_PRIORITY, BUILTIN_TEMPLATE_LOCATORS_DEFAULT_PRIORITY, EXTENSION_RESOLVERS_DEFAULT_PRIORITY

Method Summary

Methods

Modifier and Type	Method and Description
List<ConfigurationKey>	getConfigurationKeys()
void	init(Configuration configuration) Initialize the resolver instance.
Object	resolve(Object contextObject, String name) Resolve the value from specified context object and name.

Methods inherited from interface org.trimou.engine.priority.WithPriority

getPriority

Method Detail

resolve

Object resolve(Object contextObject,
             String name)

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.

Parameters:

contextObject - The context object may be null

name - The name (part of the key) is never null

Returns:

the resolved object or null

init

void init(Configuration configuration)

Initialize the resolver instance.

Parameters:

configuration -

getConfigurationKeys

List<ConfigurationKey> getConfigurationKeys()

Returns:

the list of configuration keys to discover