Example usage for org.apache.commons.configuration HierarchicalConfiguration EVENT_ADD_NODES

Introduction

In this page you can find the example usage for org.apache.commons.configuration HierarchicalConfiguration EVENT_ADD_NODES.

Prototype

int EVENT_ADD_NODES

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Document

Constant for the add nodes event.

Usage

From source file:com.netflix.config.ExpandedConfigurationListenerAdapter.java

/**
 * {@inheritDoc}/*from  w w w.  j  a  v  a2s.  c  o m*/
 * @see ConfigurationListener#configurationChanged(ConfigurationEvent)
 */
@SuppressWarnings("unchecked")
@Override
public void configurationChanged(final ConfigurationEvent event) {

    if (pauseListener) {
        return;
    }

    // Grab the event information. Some values may be null.
    final Object source = event.getSource();
    final String name = event.getPropertyName();
    final Object value = event.getPropertyValue();
    final boolean beforeUpdate = event.isBeforeUpdate();

    // Handle the different types.
    switch (event.getType()) {

    // Key identifies node where the Collection of nodes was added, or
    // null if it was at the root.
    case HierarchicalConfiguration.EVENT_ADD_NODES:
    case ConcurrentCompositeConfiguration.EVENT_CONFIGURATION_SOURCE_CHANGED:
        expandedListener.configSourceLoaded(source);
        break;

    // Key identifies the individual property that was added.
    case AbstractConfiguration.EVENT_ADD_PROPERTY:
        expandedListener.addProperty(source, name, value, beforeUpdate);
        break;

    // Entire configuration was cleared.
    case AbstractConfiguration.EVENT_CLEAR:
        expandedListener.clear(source, beforeUpdate);
        break;

    // Key identifies the single property that was cleared.
    case AbstractConfiguration.EVENT_CLEAR_PROPERTY:
        expandedListener.clearProperty(source, name, value, beforeUpdate);
        break;

    // Key identifies the nodes that were removed, along with all its
    // children. Value after update is the List of nodes that were
    // cleared. Before the update, the value is null.
    case HierarchicalConfiguration.EVENT_CLEAR_TREE:
        // Ignore this. We rewrote the clearTree() method below.
        break;

    // The current property set is invalid.
    case CombinedConfiguration.EVENT_COMBINED_INVALIDATE:
        //listener.configSourceLoaded(source);
        break;

    // Key identifies the property that was read.
    case AbstractConfiguration.EVENT_READ_PROPERTY:
        break;

    // Key identifies the property that was set.
    case AbstractConfiguration.EVENT_SET_PROPERTY:
        expandedListener.setProperty(source, name, value, beforeUpdate);
        break;

    default:
        break;
    }
}

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