com.sas.util
Class ParamObjectBase

com.sas.util.ParamObjectBase

public class ParamObjectBase

Base class for all Parameter objects. Parameter objects are used to store and retrieve parameters for both applications and applets. Applets: Applet parameters are passed to an applet via the HTML tag Applications: Application parameters are passed to an application via command line arguments as a name/value pair, such as =. If the name and/or value contains spaces they can be enclosed in quotes. A named parameter can also be preceeded with a '-', such as -name=value, or -name; in the latter case the value will be an empty string as opposed to a null value.

Field Summary

static int	PARAM_TYPE_APPLET
static int	PARAM_TYPE_ARGS

Constructor Summary

ParamObjectBase()
Construct a new (empty) ParamObjectBase object.

ParamObjectBase(java.applet.Applet applet)
Construct a new ParamObjectBase object using an applet.

ParamObjectBase(java.lang.String[] args)
Construct a new ParamObjectBase object using application arguments.

Method Summary

java.lang.String	getParam(java.lang.String param) Returns the named parameter.
java.lang.String	getParam(java.lang.String param, java.lang.String defaultValue) Returns the named parameter.

Field Detail

PARAM_TYPE_APPLET

public static final int PARAM_TYPE_APPLET

See Also:

Constant Field Values

PARAM_TYPE_ARGS

public static final int PARAM_TYPE_ARGS

See Also:

Constant Field Values

Constructor Detail

ParamObjectBase

public ParamObjectBase()

Construct a new (empty) ParamObjectBase object.

ParamObjectBase

public ParamObjectBase(java.applet.Applet applet)

Construct a new ParamObjectBase object using an applet. The parameters will be read from the applet which set via HTML tags

Parameters:

applet - The applet

ParamObjectBase

public ParamObjectBase(java.lang.String[] args)

Construct a new ParamObjectBase object using application arguments.

Parameters:

args - Command line arguments passed to the application main() method

Method Detail

getParam

public java.lang.String getParam(java.lang.String param)

Returns the named parameter.

Parameters:

param - Parameter name

Returns:

The parameter value; null if not found

getParam

public java.lang.String getParam(java.lang.String param,
                                 java.lang.String defaultValue)

Returns the named parameter. If the parameter is not found, the default value is returned.

Parameters:

param - Parameter name

defaultValue - The default value if the parameter is not found

Returns:

The parameter value