org.apache.commons.httpclient.params
Class DefaultHttpParams

java.lang.Object
  org.apache.commons.httpclient.params.DefaultHttpParams

All Implemented Interfaces:

Serializable, Cloneable, HttpParams

Direct Known Subclasses:

HostParams, HttpConnectionParams, HttpMethodParams

public class DefaultHttpParams
extends Object
implements HttpParams, Serializable, Cloneable

This class represents a collection of HTTP protocol parameters. Protocol parameters may be linked together to form a hierarchy. If a particular parameter value has not been explicitly defined in the collection itself, its value will be drawn from the parent collection of parameters.

Since:

3.0

Version:

$Revision: 155418 $

Author:

Oleg Kalnichevski

See Also:

Serialized Form

Constructor Summary

DefaultHttpParams()
Creates a new collection of parameters with the collection returned by getDefaultParams() as a parent.

DefaultHttpParams(HttpParams defaults)
Creates a new collection of parameters with the given parent.

Method Summary

void	clear() Removes all parameters from this collection.
Object	clone() Clones this collection of parameters.
boolean	getBooleanParameter(String name, boolean defaultValue) Returns a Boolean parameter value with the given name.
static HttpParams	getDefaultParams() Gets the default HttpParams to be used.
HttpParams	getDefaults() Returns the parent collection that this collection will defer to for a default value if a particular parameter is not explicitly set in the collection itself
double	getDoubleParameter(String name, double defaultValue) Returns a Double parameter value with the given name.
int	getIntParameter(String name, int defaultValue) Returns an Integer parameter value with the given name.
long	getLongParameter(String name, long defaultValue) Returns a Long parameter value with the given name.
Object	getParameter(String name) Returns a parameter value with the given name.
boolean	isParameterFalse(String name) Returns true if the parameter is either not set or is false, false otherwise.
boolean	isParameterSet(String name) Returns true if the parameter is set at any level, false otherwise.
boolean	isParameterSetLocally(String name) Returns true if the parameter is set locally, false otherwise.
boolean	isParameterTrue(String name) Returns true if the parameter is set and is true, false otherwise.
void	setBooleanParameter(String name, boolean value) Assigns a Boolean to the parameter with the given name
void	setDefaults(HttpParams params) Assigns the parent collection that this collection will defer to for a default value if a particular parameter is not explicitly set in the collection itself
void	setDoubleParameter(String name, double value) Assigns a Double to the parameter with the given name
static void	setHttpParamsFactory(HttpParamsFactory httpParamsFactory) Sets the factory that will provide the default HttpParams.
void	setIntParameter(String name, int value) Assigns an Integer to the parameter with the given name
void	setLongParameter(String name, long value) Assigns a Long to the parameter with the given name
void	setParameter(String name, Object value) Assigns the value to the parameter with the given name
void	setParameters(String[] names, Object value) Assigns the value to all the parameter with the given names

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultHttpParams

public DefaultHttpParams(HttpParams defaults)

Creates a new collection of parameters with the given parent. The collection will defer to its parent for a default value if a particular parameter is not explicitly set in the collection itself.

Parameters:

defaults - the parent collection to defer to, if a parameter is not explictly set in the collection itself.

DefaultHttpParams

public DefaultHttpParams()

Creates a new collection of parameters with the collection returned by getDefaultParams() as a parent. The collection will defer to its parent for a default value if a particular parameter is not explicitly set in the collection itself.

See Also:

getDefaultParams()

Method Detail

getDefaultParams

public static HttpParams getDefaultParams()

Gets the default HttpParams to be used.

Returns:

the value returned from HttpParamsFactory#getDefaultParams()

See Also:

HttpParamsFactory.getDefaultParams()

setHttpParamsFactory

public static void setHttpParamsFactory(HttpParamsFactory httpParamsFactory)

Sets the factory that will provide the default HttpParams.

Parameters:

httpParamsFactory - an instance of HttpParamsFactory

See Also:

getDefaultParams()

getDefaults

public HttpParams getDefaults()

Returns the parent collection that this collection will defer to for a default value if a particular parameter is not explicitly set in the collection itself

Specified by:

getDefaults in interface HttpParams

Returns:

the parent collection to defer to, if a particular parameter is not explictly set in the collection itself.

See Also:

HttpParams.setDefaults(HttpParams)

setDefaults

public void setDefaults(HttpParams params)

Assigns the parent collection that this collection will defer to for a default value if a particular parameter is not explicitly set in the collection itself

Specified by:

setDefaults in interface HttpParams

Parameters:

params - the parent collection to defer to, if a particular parameter is not explictly set in the collection itself.

See Also:

HttpParams.getDefaults()

getParameter

public Object getParameter(String name)

Returns a parameter value with the given name. If the parameter is not explicitly defined in this collection, its value will be drawn from a higer level collection at which this parameter is defined. If the parameter is not explicitly set anywhere up the hierarchy, null value is returned.

Specified by:

getParameter in interface HttpParams

Parameters:

name - the parent name.

Returns:

an object that represents the value of the parameter.

See Also:

HttpParams.setParameter(String, Object)

setParameter

public void setParameter(String name,
                         Object value)

Assigns the value to the parameter with the given name

Specified by:

setParameter in interface HttpParams

Parameters:

name - parameter name

value - parameter value

setParameters

public void setParameters(String[] names,
                          Object value)

Assigns the value to all the parameter with the given names

Parameters:

names - array of parameter name

value - parameter value

getLongParameter

public long getLongParameter(String name,
                             long defaultValue)

Returns a Long parameter value with the given name. If the parameter is not explicitly defined in this collection, its value will be drawn from a higer level collection at which this parameter is defined. If the parameter is not explicitly set anywhere up the hierarchy, the default value is returned.

Specified by:

getLongParameter in interface HttpParams

Parameters:

name - the parent name.

defaultValue - the default value.

Returns:

a Long that represents the value of the parameter.

See Also:

HttpParams.setLongParameter(String, long)

setLongParameter

public void setLongParameter(String name,
                             long value)

Assigns a Long to the parameter with the given name

Specified by:

setLongParameter in interface HttpParams

Parameters:

name - parameter name

value - parameter value

getIntParameter

public int getIntParameter(String name,
                           int defaultValue)

Returns an Integer parameter value with the given name. If the parameter is not explicitly defined in this collection, its value will be drawn from a higer level collection at which this parameter is defined. If the parameter is not explicitly set anywhere up the hierarchy, the default value is returned.

Specified by:

getIntParameter in interface HttpParams

Parameters:

name - the parent name.

defaultValue - the default value.

Returns:

a Integer that represents the value of the parameter.

See Also:

HttpParams.setIntParameter(String, int)

setIntParameter

public void setIntParameter(String name,
                            int value)

Assigns an Integer to the parameter with the given name

Specified by:

setIntParameter in interface HttpParams

Parameters:

name - parameter name

value - parameter value

getDoubleParameter

public double getDoubleParameter(String name,
                                 double defaultValue)

Returns a Double parameter value with the given name. If the parameter is not explicitly defined in this collection, its value will be drawn from a higer level collection at which this parameter is defined. If the parameter is not explicitly set anywhere up the hierarchy, the default value is returned.

Specified by:

getDoubleParameter in interface HttpParams

Parameters:

name - the parent name.

defaultValue - the default value.

Returns:

a Double that represents the value of the parameter.

See Also:

HttpParams.setDoubleParameter(String, double)

setDoubleParameter

public void setDoubleParameter(String name,
                               double value)

Assigns a Double to the parameter with the given name

Specified by:

setDoubleParameter in interface HttpParams

Parameters:

name - parameter name

value - parameter value

getBooleanParameter

public boolean getBooleanParameter(String name,
                                   boolean defaultValue)

Returns a Boolean parameter value with the given name. If the parameter is not explicitly defined in this collection, its value will be drawn from a higer level collection at which this parameter is defined. If the parameter is not explicitly set anywhere up the hierarchy, the default value is returned.

Specified by:

getBooleanParameter in interface HttpParams

Parameters:

name - the parent name.

defaultValue - the default value.

Returns:

a Boolean that represents the value of the parameter.

See Also:

HttpParams.setBooleanParameter(String, boolean)

setBooleanParameter

public void setBooleanParameter(String name,
                                boolean value)

Assigns a Boolean to the parameter with the given name

Specified by:

setBooleanParameter in interface HttpParams

Parameters:

name - parameter name

value - parameter value

isParameterSet

public boolean isParameterSet(String name)

Returns true if the parameter is set at any level, false otherwise.

Specified by:

isParameterSet in interface HttpParams

Parameters:

name - parameter name

Returns:

true if the parameter is set at any level, false otherwise.

isParameterSetLocally

public boolean isParameterSetLocally(String name)

Returns true if the parameter is set locally, false otherwise.

Specified by:

isParameterSetLocally in interface HttpParams

Parameters:

name - parameter name

Returns:

true if the parameter is set locally, false otherwise.

isParameterTrue

public boolean isParameterTrue(String name)

Returns true if the parameter is set and is true, false otherwise.

Specified by:

isParameterTrue in interface HttpParams

Parameters:

name - parameter name

Returns:

true if the parameter is set and is true, false otherwise.

isParameterFalse

public boolean isParameterFalse(String name)

Returns true if the parameter is either not set or is false, false otherwise.

Specified by:

isParameterFalse in interface HttpParams

Parameters:

name - parameter name

Returns:

true if the parameter is either not set or is false, false otherwise.

clear

public void clear()

Removes all parameters from this collection.

clone

public Object clone()
             throws CloneNotSupportedException

Clones this collection of parameters. Please note that paramter values themselves are not cloned.

Overrides:

clone in class Object

Throws:

CloneNotSupportedException

See Also:

Serializable, Object.clone()