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## org.apache.commons.configuration
Class BaseConfiguration

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

All Implemented Interfaces:
  Cloneable, Configuration

Direct Known Subclasses:
  AbstractFileConfiguration

    public class BaseConfiguration

extends AbstractConfiguration
implements Cloneable

Basic configuration class. Stores the configuration data but does not provide any load or save functions. If you want to load your Configuration from a file use PropertiesConfiguration or XmlConfiguration. This class extends normal Java properties by adding the possibility to use the same key many times concatenating the value strings instead of overwriting them.

Version:
  $Id: BaseConfiguration.java 1231721 2012-01-15 18:32:07Z oheger $
Author:
  Stefano Mazzocchi, Jon S. Stevens, Dave Bryson, Geir Magnusson Jr., Leon Messerschmidt, Kent Johnson, Daniel Rall, Ilkka Priha, Jason van Zyl, Martin Poeschl, Henning P. Schmiedehausen, Konstantin Shaposhnikov

Field Summary

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
`BaseConfiguration()`

Method Summary
`protected void` | `addPropertyDirect(String key, Object value)` Adds a key/value pair to the map.
`void` | `clear()` Remove all properties from the configuration.
`protected void` | `clearPropertyDirect(String key)` Clear a property in the configuration.
`Object` | `clone()` Creates a copy of this object.
`boolean` | `containsKey(String key)` check if the configuration contains the key
`Iterator<String>` | `getKeys()` Get the list of the keys contained in the configuration repository.
`Object` | `getProperty(String key)` Read property from underlying map.
`boolean` | `isEmpty()` Check if the configuration is empty

Methods inherited from class org.apache.commons.configuration.AbstractConfiguration
`addErrorLogListener, addProperty, append, clearProperty, 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, setProperty, setThrowExceptionOnMissing, subset`

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

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

Constructor Detail

### BaseConfiguration

    public BaseConfiguration()

Method Detail

### addPropertyDirect

    protected void addPropertyDirect(String key,
                                     Object value)

  Adds a key/value pair to the map. This routine does no magic morphing. It ensures the keylist is maintained

  Specified by:
    `addPropertyDirect` in class `AbstractConfiguration`
  Parameters:
    `key` - key to use for mapping
    `value` - object to store

### getProperty

    public Object getProperty(String key)

  Read property from underlying map.

  Specified by:
    `getProperty` in interface `Configuration`
  Parameters:
    `key` - key to use for mapping
  Returns:
    object associated with the given configuration key.

### isEmpty

    public boolean isEmpty()

  Check if the configuration is empty

  Specified by:
    `isEmpty` in interface `Configuration`
  Returns:
    `true` if Configuration is empty, `false` otherwise.

### containsKey

    public boolean containsKey(String key)

  check if the configuration contains the key

  Specified by:
    `containsKey` in interface `Configuration`
  Parameters:
    `key` - the configuration key
  Returns:
    `true` if Configuration contain given key, `false` otherwise.

### clearPropertyDirect

    protected void clearPropertyDirect(String key)

  Clear a property in the configuration.

  Overrides:
    `clearPropertyDirect` in class `AbstractConfiguration`
  Parameters:
    `key` - the key to remove along with corresponding value.

### clear

    public void clear()

  Description copied from interface: `Configuration`
  Remove all properties from the configuration.

  Specified by:
    `clear` in interface `Configuration`
  Overrides:
    `clear` in class `AbstractConfiguration`

### getKeys

    public Iterator<String> getKeys()

  Get the list of the keys contained in the configuration repository.

  Specified by:
    `getKeys` in interface `Configuration`
  Returns:
    An Iterator.

### clone

    public Object clone()

  Creates a copy of this object. This implementation will create a deep clone, i.e. the map that stores the properties is cloned, too. So changes performed at the copy won't affect the original and vice versa.

  Overrides:
    `clone` in class `EventSource`
  Returns:
    the copy
  Since:
    1.3

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