nextapp.echoservlet
Class InitialParametersImpl

java.lang.Object
  nextapp.echoservlet.InitialParametersImpl

All Implemented Interfaces:

InitialParameters, java.io.Serializable

class InitialParametersImpl

extends java.lang.Object

implements InitialParameters, java.io.Serializable

The implementation of the InitialParameters interface.

See Also:

InitialParameters

Field Summary

private java.util.Map

parameterMap

Fields inherited from interface nextapp.echoservlet.InitialParameters

ATTRIBUTE_NAME

Constructor Summary

(package private)

InitialParametersImpl(java.util.Map parameterMap)

Method Summary

java.lang.String[]	getAllParameterNames() Returns an array of all the initial request parameters names.
java.lang.String	getParameter(java.lang.String name) Returns the value of an initial request parameter as a String, or null if the parameter does not exist.
java.util.Map	getParameterMap() Returns a java.util.Map of the parameters of the initial request.
java.util.Iterator	getParameterNames() Returns an Iterator of String objects containing the names of the parameters contained in the initial request.
java.lang.String[]	getParameterValues(java.lang.String name) Returns an array of String objects containing all of the values the given initial request parameter has, or null if the parameter does not exist.

Methods inherited from class java.lang.Object

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

Field Detail

parameterMap

private java.util.Map parameterMap

Constructor Detail

InitialParametersImpl

InitialParametersImpl(java.util.Map parameterMap)

Method Detail

getAllParameterNames

public java.lang.String[] getAllParameterNames()

Description copied from interface: InitialParameters

Returns an array of all the initial request parameters names. If the initial request has no parameters, the method returns an zero length String array.

Specified by:

getAllParameterNames in interface InitialParameters

Returns:

an array of String objects, each String containing the name of a request parameter; or a zero length array if the request has no parameters

See Also:

InitialParameters.getAllParameterNames()

getParameter

public java.lang.String getParameter(java.lang.String name)

Description copied from interface: InitialParameters

Returns the value of an initial request parameter as a String, or null if the parameter does not exist.

You should only use this method when you are sure the parameter has only one value. If the parameter might have more than one value, use getParameterValues(java.lang.String).

If you use this method with a multivalued parameter, the value returned is equal to the first value in the array returned by getParameterValues.

Specified by:

getParameter in interface InitialParameters

Parameters:

name - - a String specifying the name of the parameter

Returns:

a String representing the single value of the parameter

See Also:

InitialParameters.getParameter(java.lang.String)

getParameterMap

public java.util.Map getParameterMap()

Description copied from interface: InitialParameters

Returns a java.util.Map of the parameters of the initial request.

Specified by:

getParameterMap in interface InitialParameters

Returns:

an immutable java.util.Map containing parameter names as keys and parameter values as map values. The keys in the parameter map are of type String. The values in the parameter map are of type String[].

See Also:

InitialParameters.getParameterMap()

getParameterNames

public java.util.Iterator getParameterNames()

Description copied from interface: InitialParameters

Returns an Iterator of String objects containing the names of the parameters contained in the initial request. If the initial request has no parameters, the method returns an empty Enumeration.

Specified by:

getParameterNames in interface InitialParameters

Returns:

an Iterator of String objects, each String containing the name of an initial request parameter; or an empty Enumeration if the request has no parameters

See Also:

InitialParameters.getParameterNames()

getParameterValues

public java.lang.String[] getParameterValues(java.lang.String name)

Description copied from interface: InitialParameters

Returns an array of String objects containing all of the values the given initial request parameter has, or null if the parameter does not exist.

If the parameter has a single value, the array has a length of 1.

Specified by:

getParameterValues in interface InitialParameters

Parameters:

name - - a String containing the name of the parameter whose value is requested

Returns:

an array of String objects containing the parameter's values

See Also:

InitialParameters.getParameterValues(java.lang.String)