org.apache.commons.configuration
Class JNDIConfiguration

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

All Implemented Interfaces:

Configuration

public class JNDIConfiguration

extends AbstractConfiguration

This Configuration class allows you to interface with a JNDI datasource. A JNDIConfiguration is read-only, write operations will throw an UnsupportedOperationException. The clear operations are supported but the underlying JNDI data source is not changed.

Version:

$Id: JNDIConfiguration.java 439648 2006-09-02 20:42:10Z oheger $

Author:

Eric Pugh

Field Summary

Fields inherited from class org.apache.commons.configuration.AbstractConfiguration

END_TOKEN, EVENT_ADD_PROPERTY, EVENT_CLEAR, EVENT_CLEAR_PROPERTY, EVENT_SET_PROPERTY, START_TOKEN

Constructor Summary

JNDIConfiguration()
Creates a JNDIConfiguration using the default initial context as the root of the properties.

JNDIConfiguration(Context context)
Creates a JNDIConfiguration using the specified initial context as the root of the properties.

JNDIConfiguration(Context context, String prefix)
Creates a JNDIConfiguration using the specified initial context shifted by the specified prefix as the root of the properties.

JNDIConfiguration(String prefix)
Creates a JNDIConfiguration using the default initial context, shifted with the specified prefix, as the root of the properties.

Method Summary

protected void	addPropertyDirect(String key, Object obj) This operation is not supported and will throw an UnsupportedOperationException.
void	clearProperty(String key) Removes the specified property.
boolean	containsKey(String key) Checks whether the specified key is contained in this configuration.
Context	getBaseContext() Return the base context with the prefix applied.
Context	getContext() Return the initial context used by this configuration.
Iterator	getKeys() Returns an iterator with all property keys stored in this configuration.
Iterator	getKeys(String prefix) Returns an iterator with all property keys starting with the given prefix.
String	getPrefix() Returns the prefix.
Object	getProperty(String key) Returns the value of the specified property.
boolean	isEmpty() Returns a flag whether this configuration is empty.
void	setContext(Context context) Set the initial context of the configuration.
void	setPrefix(String prefix) Sets the prefix.
void	setProperty(String key, Object value) This operation is not supported and will throw an UnsupportedOperationException.

Methods inherited from class org.apache.commons.configuration.AbstractConfiguration

addProperty, clear, clearPropertyDirect, getBigDecimal, getBigDecimal, getBigInteger, getBigInteger, getBoolean, getBoolean, getBoolean, getByte, getByte, getByte, getDefaultListDelimiter, getDelimiter, getDouble, getDouble, getDouble, getFloat, getFloat, getFloat, getInt, getInt, getInteger, getList, getList, getListDelimiter, getLong, getLong, getLong, getProperties, getProperties, getShort, getShort, getShort, getString, getString, getStringArray, interpolate, interpolate, interpolateHelper, isDelimiterParsingDisabled, isThrowExceptionOnMissing, resolveContainerStore, setDefaultListDelimiter, setDelimiter, setDelimiterParsingDisabled, setListDelimiter, setThrowExceptionOnMissing, subset

Methods inherited from class org.apache.commons.configuration.event.EventSource

addConfigurationListener, clearConfigurationListeners, createEvent, fireEvent, getConfigurationListeners, isDetailEvents, removeConfigurationListener, setDetailEvents

Methods inherited from class java.lang.Object

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

Constructor Detail

JNDIConfiguration

public JNDIConfiguration()
                  throws NamingException

Creates a JNDIConfiguration using the default initial context as the root of the properties.

Throws:

NamingException - thrown if an error occurs when initializing the default context

JNDIConfiguration

public JNDIConfiguration(String prefix)
                  throws NamingException

Creates a JNDIConfiguration using the default initial context, shifted with the specified prefix, as the root of the properties.

Parameters:

prefix - the prefix

Throws:

NamingException - thrown if an error occurs when initializing the default context

JNDIConfiguration

public JNDIConfiguration(Context context)

Creates a JNDIConfiguration using the specified initial context as the root of the properties.

Parameters:

context - the initial context

JNDIConfiguration

public JNDIConfiguration(Context context,
                         String prefix)

Creates a JNDIConfiguration using the specified initial context shifted by the specified prefix as the root of the properties.

Parameters:

context - the initial context

prefix - the prefix

Method Detail

getKeys

public Iterator getKeys()

Returns an iterator with all property keys stored in this configuration.

Specified by:

getKeys in interface Configuration

Specified by:

getKeys in class AbstractConfiguration

Returns:

an iterator with all keys

getKeys

public Iterator getKeys(String prefix)

Returns an iterator with all property keys starting with the given prefix.

Specified by:

getKeys in interface Configuration

Overrides:

getKeys in class AbstractConfiguration

Parameters:

prefix - the prefix

Returns:

an iterator with the selected keys

isEmpty

public boolean isEmpty()

Returns a flag whether this configuration is empty.

Specified by:

isEmpty in interface Configuration

Specified by:

isEmpty in class AbstractConfiguration

Returns:

the empty flag

setProperty

public void setProperty(String key,
                        Object value)

This operation is not supported and will throw an UnsupportedOperationException.

Specified by:

setProperty in interface Configuration

Overrides:

setProperty in class AbstractConfiguration

Parameters:

key - the key

value - the value

Throws:

UnsupportedOperationException

clearProperty

public void clearProperty(String key)

Removes the specified property.

Specified by:

clearProperty in interface Configuration

Overrides:

clearProperty in class AbstractConfiguration

Parameters:

key - the key of the property to remove

containsKey

public boolean containsKey(String key)

Checks whether the specified key is contained in this configuration.

Specified by:

containsKey in interface Configuration

Specified by:

containsKey in class AbstractConfiguration

Parameters:

key - the key to check

Returns:

a flag whether this key is stored in this configuration

getPrefix

public String getPrefix()

Returns the prefix.

Returns:

the prefix

setPrefix

public void setPrefix(String prefix)

Sets the prefix.

Parameters:

prefix - The prefix to set

getProperty

public Object getProperty(String key)

Returns the value of the specified property.

Parameters:

key - the key of the property

Returns:

the value of this property

addPropertyDirect

protected void addPropertyDirect(String key,
                                 Object obj)

This operation is not supported and will throw an UnsupportedOperationException.

Specified by:

addPropertyDirect in class AbstractConfiguration

Parameters:

key - the key

obj - the value

Throws:

UnsupportedOperationException

getBaseContext

public Context getBaseContext()
                       throws NamingException

Return the base context with the prefix applied.

Returns:

the base context

Throws:

NamingException - if an error occurs

getContext

public Context getContext()

Return the initial context used by this configuration. This context is independent of the prefix specified.

Returns:

the initial context

setContext

public void setContext(Context context)

Set the initial context of the configuration.

Parameters:

context - the context