Examples of BuilderConfigurationWrapperFactory

org.apache.commons.configuration2.builder.BuilderConfigurationWrapperFactory

A class that allows the creation of configuration objects wrapping a {@link ConfigurationBuilder}.

Using this class special {@code Configuration} proxies can be created thatdelegate all method invocations to another {@code Configuration} obtainedfrom a {@code ConfigurationBuilder}. For instance, if there is a configuration {@code c} wrapping the builder {@code builder}, the call {@code c.getString(myKey)} is transformed to{@code builder.getConfiguration().getString(myKey)}.

There are multiple use cases for such a constellation. One example is that client code can continue working with {@code Configuration} objects whileunder the hood builders are used. Another example is that dynamic configurations can be realized in a transparent way: a client holds a single configuration (proxy) object, but the underlying builder may return a different data object on each call.

@version $Id: BuilderConfigurationWrapperFactory.java 1624601 2014-09-12 18:04:36Z oheger $ @since 2.0

        params.setInterpolator(ci);
        MultiFileConfigurationBuilder<XMLConfiguration> builder =
                new MultiFileConfigurationBuilder<XMLConfiguration>(
                        XMLConfiguration.class, null, true);
        builder.configure(params);
        BuilderConfigurationWrapperFactory wrapFactory =
                new BuilderConfigurationWrapperFactory();
        config.addConfiguration(wrapFactory.createBuilderConfigurationWrapper(
                HierarchicalConfiguration.class, builder), "Multi");
        assertTrue("Got configuration data", config.isEmpty());
    }

                                ConfigurationInterpolator
                                        .getDefaultPrefixLookups())
                        .setManagedBuilderParameters(
                                parameters.xml().setExpressionEngine(engine)
                                        .setListDelimiterHandler(listHandler)));
        BuilderConfigurationWrapperFactory wrapFactory =
                new BuilderConfigurationWrapperFactory();
        config.addConfiguration(wrapFactory.createBuilderConfigurationWrapper(
                HierarchicalConfiguration.class, multiBuilder), "Multi");
        XMLConfiguration xml = new XMLConfiguration();
        xml.setExpressionEngine(engine);
        FileHandler handler = new FileHandler(xml);
        handler.setFile(new File(DEFAULT_FILE));

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Examples of BuilderConfigurationWrapperFactory

Examples of org.apache.commons.configuration2.builder.BuilderConfigurationWrapperFactory

Examples of org.apache.commons.configuration2.builder.BuilderConfigurationWrapperFactory