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## org.apache.commons.configuration
Class XMLPropertiesConfiguration

    java.lang.Object
      org.apache.commons.configuration.event.EventSource
          org.apache.commons.configuration.AbstractConfiguration
              org.apache.commons.configuration.BaseConfiguration
                  org.apache.commons.configuration.AbstractFileConfiguration
                      org.apache.commons.configuration.PropertiesConfiguration
                          org.apache.commons.configuration.XMLPropertiesConfiguration

All Implemented Interfaces:
  Cloneable, Configuration, FileConfiguration, FileSystemBased

    public class XMLPropertiesConfiguration

extends PropertiesConfiguration

This configuration implements the XML properties format introduced in Java 5.0, see http://java.sun.com/j2se/1.5.0/docs/api/java/util/Properties.html. An XML properties file looks like this:

     <?xml version="1.0"?>
     <!DOCTYPE properties SYSTEM "http://java.sun.com/dtd/properties.dtd">
     <properties>
       <comment>Description of the property list</comment>
       <entry key="key1">value1</entry>
       <entry key="key2">value2</entry>
       <entry key="key3">value3</entry>
     </properties>

The Java 5.0 runtime is not required to use this class. The default encoding for this configuration format is UTF-8. Note that unlike `PropertiesConfiguration`, `XMLPropertiesConfiguration` does not support includes. Note:Configuration objects of this type can be read concurrently by multiple threads. However if one of these threads modifies the object, synchronization has to be performed manually.

Since:
  1.1
Version:
  $Id: XMLPropertiesConfiguration.java 1210207 2011-12-04 20:43:50Z oheger $
Author:
  Emmanuel Bourg, Alistair Young

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.commons.configuration.PropertiesConfiguration
`PropertiesConfiguration.DefaultIOFactory, PropertiesConfiguration.IOFactory, PropertiesConfiguration.PropertiesReader, PropertiesConfiguration.PropertiesWriter`

Field Summary

Fields inherited from class org.apache.commons.configuration.AbstractFileConfiguration
`autoSave, basePath, EVENT_CONFIG_CHANGED, EVENT_RELOAD, fileName, reloadLock, strategy`

Fields inherited from class org.apache.commons.configuration.AbstractConfiguration
`END_TOKEN, EVENT_ADD_PROPERTY, EVENT_CLEAR, EVENT_CLEAR_PROPERTY, EVENT_READ_PROPERTY, EVENT_SET_PROPERTY, START_TOKEN`

Constructor Summary
`XMLPropertiesConfiguration()` Creates an empty XMLPropertyConfiguration object which can be used to synthesize a new Properties file by adding values and then saving().
`XMLPropertiesConfiguration(File file)` Creates and loads the xml properties from the specified file.
`XMLPropertiesConfiguration(String fileName)` Creates and loads the xml properties from the specified file.
`XMLPropertiesConfiguration(URL url)` Creates and loads the xml properties from the specified URL.

Method Summary
`void` | `load(Reader in)` Load the properties from the given reader.
`void` | `save(Writer out)` Save the configuration to the specified stream.

Methods inherited from class org.apache.commons.configuration.PropertiesConfiguration
`clone, createLayout, getEncoding, getHeader, getInclude, getIncludesAllowed, getIOFactory, getLayout, setBasePath, setHeader, setInclude, setIncludesAllowed, setIOFactory, setLayout, unescapeJava`

Methods inherited from class org.apache.commons.configuration.AbstractFileConfiguration
`addProperty, clearProperty, closeSilent, configurationChanged, containsKey, enterNoReload, exitNoReload, fireEvent, getBasePath, getFile, getFileName, getFileSystem, getKeys, getPath, getProperty, getReloadingStrategy, getReloadLock, getURL, isAutoSave, isEmpty, load, load, load, load, load, load, possiblySave, refresh, reload, reload, resetFileSystem, save, save, save, save, save, save, setAutoSave, setEncoding, setFile, setFileName, setFileSystem, setPath, setProperty, setReloadingStrategy, setURL`

Methods inherited from class org.apache.commons.configuration.BaseConfiguration
`addPropertyDirect, clear, clearPropertyDirect`

Methods inherited from class org.apache.commons.configuration.AbstractConfiguration
`addErrorLogListener, append, copy, createInterpolator, getBigDecimal, getBigDecimal, getBigInteger, getBigInteger, getBoolean, getBoolean, getBoolean, getByte, getByte, getByte, getDefaultListDelimiter, getDelimiter, getDouble, getDouble, getDouble, getFloat, getFloat, getFloat, getInt, getInt, getInteger, getInterpolator, getKeys, getList, getList, getListDelimiter, getLogger, getLong, getLong, getLong, getProperties, getProperties, getShort, getShort, getShort, getString, getString, getStringArray, getSubstitutor, interpolate, interpolate, interpolatedConfiguration, interpolateHelper, isDelimiterParsingDisabled, isScalarValue, isThrowExceptionOnMissing, resolveContainerStore, setDefaultListDelimiter, setDelimiter, setDelimiterParsingDisabled, setListDelimiter, setLogger, setThrowExceptionOnMissing, subset`

Methods inherited from class org.apache.commons.configuration.event.EventSource
`addConfigurationListener, addErrorListener, clearConfigurationListeners, clearErrorListeners, createErrorEvent, createEvent, fireError, getConfigurationListeners, getErrorListeners, isDetailEvents, removeConfigurationListener, removeErrorListener, setDetailEvents`

Methods inherited from class java.lang.Object
`equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Methods inherited from interface org.apache.commons.configuration.Configuration
`clear, getBigDecimal, getBigDecimal, getBigInteger, getBigInteger, getBoolean, getBoolean, getBoolean, getByte, getByte, getByte, getDouble, getDouble, getDouble, getFloat, getFloat, getFloat, getInt, getInt, getInteger, getKeys, getList, getList, getLong, getLong, getLong, getProperties, getShort, getShort, getShort, getString, getString, getStringArray, subset`

Constructor Detail

### XMLPropertiesConfiguration

    public XMLPropertiesConfiguration()

  Creates an empty XMLPropertyConfiguration object which can be used to synthesize a new Properties file by adding values and then saving(). An object constructed by this C'tor can not be tickled into loading included files because it cannot supply a base for relative includes.

### XMLPropertiesConfiguration

    public XMLPropertiesConfiguration(String fileName)
                               throws ConfigurationException

  Creates and loads the xml properties from the specified file. The specified file can contain "include" properties which then are loaded and merged into the properties.

  Parameters:
    `fileName` - The name of the properties file to load.
  Throws:
    `ConfigurationException` - Error while loading the properties file

### XMLPropertiesConfiguration

    public XMLPropertiesConfiguration(File file)
                               throws ConfigurationException

  Creates and loads the xml properties from the specified file. The specified file can contain "include" properties which then are loaded and merged into the properties.

  Parameters:
    `file` - The properties file to load.
  Throws:
    `ConfigurationException` - Error while loading the properties file

### XMLPropertiesConfiguration

    public XMLPropertiesConfiguration(URL url)
                               throws ConfigurationException

  Creates and loads the xml properties from the specified URL. The specified file can contain "include" properties which then are loaded and merged into the properties.

  Parameters:
    `url` - The location of the properties file to load.
  Throws:
    `ConfigurationException` - Error while loading the properties file

Method Detail

### load

    public void load(Reader in)
              throws ConfigurationException

  Description copied from class: `PropertiesConfiguration`
  Load the properties from the given reader. Note that the `clear()` method is not called, so the properties contained in the loaded file will be added to the actual set of properties.

  Specified by:
    `load` in interface `FileConfiguration`
  Overrides:
    `load` in class `PropertiesConfiguration`
  Parameters:
    `in` - An InputStream.
  Throws:
    `ConfigurationException` - if an error occurs

### save

    public void save(Writer out)
              throws ConfigurationException

  Description copied from class: `PropertiesConfiguration`
  Save the configuration to the specified stream.

  Specified by:
    `save` in interface `FileConfiguration`
  Overrides:
    `save` in class `PropertiesConfiguration`
  Parameters:
    `out` - the output stream used to save the configuration
  Throws:
    `ConfigurationException` - if an error occurs

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