Package gov.aps.jca.configuration

Class AbstractConfiguration

java.lang.Object

gov.aps.jca.configuration.AbstractConfiguration

All Implemented Interfaces:

Configuration

Direct Known Subclasses:

DefaultConfiguration

public abstract class AbstractConfiguration
extends Object
implements Configuration

This is an abstract Configuration implementation that deals with methods that can be abstracted away from underlying implementations.

Version:

CVS $Revision: 1.1 $ $Date: 2004-08-11 15:50:32 $

Author:

Federico Barbieri, Stefano Mazzocchi, Peter Donald, Pierpaolo Fumagalli, Leo Sutic

Constructor Summary

Constructors

Constructor	Description
AbstractConfiguration()

Method Summary

Modifier and Type	Method	Description
String	getAttribute(String name, String defaultValue)	Returns the value of the attribute specified by its name as a String.
boolean	getAttributeAsBoolean(String name)	Returns the value of the attribute specified by its name as a boolean.
boolean	getAttributeAsBoolean(String name, boolean defaultValue)	Returns the value of the attribute specified by its name as a boolean.
float	getAttributeAsFloat(String name)	Returns the value of the attribute specified by its name as a float.
float	getAttributeAsFloat(String name, float defaultValue)	Returns the value of the attribute specified by its name as a float.
int	getAttributeAsInteger(String name)	Returns the value of the attribute specified by its name as an int.
int	getAttributeAsInteger(String name, int defaultValue)	Returns the value of the attribute specified by its name as an int.
long	getAttributeAsLong(String name)	Returns the value of the attribute specified by its name as a long.
long	getAttributeAsLong(String name, long defaultValue)	Returns the value of the attribute specified by its name as a long.
Configuration	getChild(String name)	Return the first Configuration object child of this associated with the given name.
Configuration	getChild(String name, boolean createNew)	Return the first Configuration object child of this associated with the given name.
protected abstract String	getPrefix()	Returns the prefix of the namespace.
String	getValue(String defaultValue)	Returns the value of the configuration element as a String.
boolean	getValueAsBoolean()	Returns the value of the configuration element as a boolean.
boolean	getValueAsBoolean(boolean defaultValue)	Returns the value of the configuration element as a boolean.
float	getValueAsFloat()	Returns the value of the configuration element as a float.
float	getValueAsFloat(float defaultValue)	Returns the value of the configuration element as a float.
int	getValueAsInteger()	Returns the value of the configuration element as an int.
int	getValueAsInteger(int defaultValue)	Returns the value of the configuration element as an int.
long	getValueAsLong()	Returns the value of the configuration element as a long.
long	getValueAsLong(long defaultValue)	Returns the value of the configuration element as a long.

Methods inherited from class java.lang.Object

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

Methods inherited from interface gov.aps.jca.configuration.Configuration

getAttribute, getAttributeNames, getChildren, getChildren, getLocation, getName, getNamespace, getValue

Constructor Detail

AbstractConfiguration

public AbstractConfiguration()

Method Detail

getPrefix

protected abstract String getPrefix()
                             throws ConfigurationException

Returns the prefix of the namespace. This is only used as a serialization hint, therefore is not part of the client API. It should be included in all Configuration implementations though.

Returns:

A non-null String (defaults to "")

Throws:

ConfigurationException - if no prefix was defined (prefix is null.

getValueAsInteger

public int getValueAsInteger()
                      throws ConfigurationException

Returns the value of the configuration element as an int. Hexadecimal numbers begin with 0x, Octal numbers begin with 0o and binary numbers begin with 0b, all other values are assumed to be decimal.

Specified by:

getValueAsInteger in interface Configuration

Returns:

the value

Throws:

ConfigurationException - if an error occurs

getValueAsInteger

public int getValueAsInteger(int defaultValue)

Returns the value of the configuration element as an int. Hexadecimal numbers begin with 0x, Octal numbers begin with 0o and binary numbers begin with 0b, all other values are assumed to be decimal.

Specified by:

getValueAsInteger in interface Configuration

Parameters:

defaultValue - the default value to return if value malformed or empty

Returns:

the value

getValueAsLong

public long getValueAsLong()
                    throws ConfigurationException

Returns the value of the configuration element as a long. Hexadecimal numbers begin with 0x, Octal numbers begin with 0o and binary numbers begin with 0b, all other values are assumed to be decimal.

Specified by:

getValueAsLong in interface Configuration

Returns:

the value

Throws:

ConfigurationException - if an error occurs

getValueAsLong

public long getValueAsLong(long defaultValue)

Returns the value of the configuration element as a long. Hexadecimal numbers begin with 0x, Octal numbers begin with 0o and binary numbers begin with 0b, all other values are assumed to be decimal.

Specified by:

getValueAsLong in interface Configuration

Parameters:

defaultValue - the default value to return if value malformed or empty

Returns:

the value

getValueAsFloat

public float getValueAsFloat()
                      throws ConfigurationException

Returns the value of the configuration element as a float.

Specified by:

getValueAsFloat in interface Configuration

Returns:

the value

Throws:

ConfigurationException - if an error occurs

getValueAsFloat

public float getValueAsFloat(float defaultValue)

Returns the value of the configuration element as a float.

Specified by:

getValueAsFloat in interface Configuration

Parameters:

defaultValue - the default value to return if value malformed or empty

Returns:

the value

getValueAsBoolean

public boolean getValueAsBoolean()
                          throws ConfigurationException

Returns the value of the configuration element as a boolean.

Specified by:

getValueAsBoolean in interface Configuration

Returns:

the value

Throws:

ConfigurationException - if an error occurs

getValueAsBoolean

public boolean getValueAsBoolean(boolean defaultValue)

Returns the value of the configuration element as a boolean.

Specified by:

getValueAsBoolean in interface Configuration

Parameters:

defaultValue - the default value to return if value malformed or empty

Returns:

the value

getValue

public String getValue(String defaultValue)

Returns the value of the configuration element as a String.

Specified by:

getValue in interface Configuration

Parameters:

defaultValue - the default value to return if value malformed or empty

Returns:

the value

getAttributeAsInteger

public int getAttributeAsInteger(String name)
                          throws ConfigurationException

Returns the value of the attribute specified by its name as an int. Hexadecimal numbers begin with 0x, Octal numbers begin with 0o and binary numbers begin with 0b, all other values are assumed to be decimal.

Specified by:

getAttributeAsInteger in interface Configuration

Parameters:

name - the name of the attribute

Returns:

the value

Throws:

ConfigurationException - if an error occurs

getAttributeAsInteger

public int getAttributeAsInteger(String name,
                                 int defaultValue)

Returns the value of the attribute specified by its name as an int. Hexadecimal numbers begin with 0x, Octal numbers begin with 0o and binary numbers begin with 0b, all other values are assumed to be decimal.

Specified by:

getAttributeAsInteger in interface Configuration

Parameters:

name - the name of the attribute

defaultValue - the default value to return if value malformed or empty

Returns:

the value

getAttributeAsLong

public long getAttributeAsLong(String name)
                        throws ConfigurationException

Returns the value of the attribute specified by its name as a long. Hexadecimal numbers begin with 0x, Octal numbers begin with 0o and binary numbers begin with 0b, all other values are assumed to be decimal.

Specified by:

getAttributeAsLong in interface Configuration

Parameters:

name - the name of the attribute

Returns:

the value

Throws:

ConfigurationException - if an error occurs

getAttributeAsLong

public long getAttributeAsLong(String name,
                               long defaultValue)

Returns the value of the attribute specified by its name as a long. Hexadecimal numbers begin with 0x, Octal numbers begin with 0o and binary numbers begin with 0b, all other values are assumed to be decimal.

Specified by:

getAttributeAsLong in interface Configuration

Parameters:

name - the name of the attribute

defaultValue - the default value to return if value malformed or empty

Returns:

the value

getAttributeAsFloat

public float getAttributeAsFloat(String name)
                          throws ConfigurationException

Returns the value of the attribute specified by its name as a float.

Specified by:

getAttributeAsFloat in interface Configuration

Parameters:

name - the name of the attribute

Returns:

the value

Throws:

ConfigurationException - if an error occurs

getAttributeAsFloat

public float getAttributeAsFloat(String name,
                                 float defaultValue)

Returns the value of the attribute specified by its name as a float.

Specified by:

getAttributeAsFloat in interface Configuration

Parameters:

name - the name of the attribute

defaultValue - the default value to return if value malformed or empty

Returns:

the value

getAttributeAsBoolean

public boolean getAttributeAsBoolean(String name)
                              throws ConfigurationException

Returns the value of the attribute specified by its name as a boolean.

Specified by:

getAttributeAsBoolean in interface Configuration

Parameters:

name - the name of the attribute

Returns:

the value

Throws:

ConfigurationException - if an error occurs

getAttributeAsBoolean

public boolean getAttributeAsBoolean(String name,
                                     boolean defaultValue)

Returns the value of the attribute specified by its name as a boolean.

Specified by:

getAttributeAsBoolean in interface Configuration

Parameters:

name - the name of the attribute

defaultValue - the default value to return if value malformed or empty

Returns:

the value

getAttribute

public String getAttribute(String name,
                           String defaultValue)

Returns the value of the attribute specified by its name as a String.

Specified by:

getAttribute in interface Configuration

Parameters:

name - the name of the attribute

defaultValue - the default value to return if value malformed or empty

Returns:

the value

getChild

public Configuration getChild(String name)

Return the first Configuration object child of this associated with the given name. If no such child exists, a new one will be created.

Specified by:

getChild in interface Configuration

Parameters:

name - the name of the child

Returns:

the child Configuration

getChild

public Configuration getChild(String name,
                              boolean createNew)

Return the first Configuration object child of this associated with the given name.

Specified by:

getChild in interface Configuration

Parameters:

name - the name of the child

createNew - true if you want to create a new Configuration object if none exists

Returns:

the child Configuration