org.apache.tamaya.core.internal

Class DefaultConfiguration

java.lang.Object

org.apache.tamaya.core.internal.DefaultConfiguration

All Implemented Interfaces:

Configuration

public class DefaultConfiguration
extends Object
implements Configuration

Implementation of the Configuration API. This class uses the current ConfigurationContext to evaluate the chain of PropertySource and PropertyFilter instance to evaluate the current Configuration.

Constructor Summary

Constructors

Constructor and Description
DefaultConfiguration(ConfigurationContext configurationContext) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
String	get(String key) This method evaluates the given configuration key.
<T> T	get(String key, Class<T> type) Accesses the current String value for the given key and tries to convert it using the PropertyConverter instances provided by the current ConfigurationContext.
<T> T	get(String key, TypeLiteral<T> type) Accesses the current String value for the given key and tries to convert it using the PropertyConverter instances provided by the current ConfigurationContext.
Map<String,String>	getProperties() Get the current properties, composed by the loaded PropertySource and filtered by registered PropertyFilter.
<T> T	query(ConfigQuery<T> query)
Configuration	with(ConfigOperator operator)

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultConfiguration

public DefaultConfiguration(ConfigurationContext configurationContext)

Constructor.

Parameters:

configurationContext - The configuration Context to be used.

Method Detail

get

public String get(String key)

This method evaluates the given configuration key. Hereby if goes down the chain or PropertySource instances provided by the current ConfigurationContext. The first non-null-value returned is taken as an intermediate value. Finally the value is filtered through the PropertyFilter instances installed, before it is returned as the final result of this method.

Specified by:

get in interface Configuration

Parameters:

key - the property's key, not null.

Returns:

the optional configuration value, never null.

getProperties

public Map<String,String> getProperties()

Get the current properties, composed by the loaded PropertySource and filtered by registered PropertyFilter.

Specified by:

getProperties in interface Configuration

Returns:

the final properties.

get

public <T> T get(String key,
        Class<T> type)

Accesses the current String value for the given key and tries to convert it using the PropertyConverter instances provided by the current ConfigurationContext.

Specified by:

get in interface Configuration

Type Parameters:

T - the value type

Parameters:

key - the property's absolute, or relative path, e.g. @code a/b/c/d.myProperty}.

type - The target type required, not null.

Returns:

the converted value, never null.

get

public <T> T get(String key,
        TypeLiteral<T> type)

Accesses the current String value for the given key and tries to convert it using the PropertyConverter instances provided by the current ConfigurationContext.

Specified by:

get in interface Configuration

Type Parameters:

T - the value type

Parameters:

key - the property's absolute, or relative path, e.g. @code a/b/c/d.myProperty}.

type - The target type required, not null.

Returns:

the converted value, never null.

with

public Configuration with(ConfigOperator operator)

Specified by:

with in interface Configuration

query

public <T> T query(ConfigQuery<T> query)

Specified by:

query in interface Configuration