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Java Source Code / Java Documentation » 6.0 JDK Modules » j2me » gov.nist.javax.sdp

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Class Diagram

Java Document (Java Doc)

java.lang .Object

gov.nist.javax.sdp .MediaDescriptionImpl

MediaDescriptionImpl
public class MediaDescriptionImpl (Code)
	Field implementation of Media Description interface. version: JSR141-PUBLIC-REVIEW (subject to change). version: This code is in the public domain.

Field Summary
protected Vector	attributeFields Connection attributes.
protected Vector	bandwidthFields Vector of bandwidths.
protected ConnectionField	connectionField Current connection.
protected InformationField	informationField Extra information field.
protected KeyField	keyField Key field.
protected MediaField	mediaField Media type field.

Constructor Summary
public	MediaDescriptionImpl() Default constructor.

Method Summary
protected void	addAttribute(AttributeField af) Adds a new attirbute to the list.
public void	addBandwidthField(BandwidthField b) Sets the bandwidth field member.
public void	addDynamicPayloads(Vector payloadNames, Vector payloadValues) Adds dynamic media types to the description.
public String	encode() Encodes to a canonical form.
public String	getAttribute(String name) Returns the value of the specified attribute.
public Vector	getAttributeFields() Gets the attributes filed.
public Vector	getAttributes(boolean create) Returns the set of attributes for this Description as a Vector of Attribute objects in the order they were parsed.
public int	getBandwidth(String name) Returns the integer value of the specified bandwidth name.
public Vector	getBandwidths(boolean create) Returns the Bandwidth of the specified type.
public ConnectionField	getConnection() Returns the connection information associated with this object.
public ConnectionField	getConnectionField()
public InformationField	getInfo() Returns value of the info field (i=) of this object.
public InformationField	getInformationField() Gets the information field.
public KeyField	getKey() Returns the key data.
public KeyField	getKeyField() Gets the key field.
public MediaField	getMedia() Returns the Media field of the description.
public MediaField	getMediaField()
public Vector	getMimeParameters() Returns a Vector containing a string of parameters for each of the codecs in this description. A parameter string is computed for each codec. The parameter string is computed in the following fashion. The rate is extracted from the rtpmap or static data. The number of channels is extracted from the rtpmap or static data. The ptime is extracted from the ptime attribute. The maxptime is extracted from the maxptime attribute. Any additional parameters are extracted from the ftmp attribute. throws: SdpException - if there is a problem extracting the parameters.
public Vector	getMimeTypes() Returns a Vector containing a string indicating the MIME type for each of the codecs in this description. A MIME value is computed for each codec in the media description. The MIME type is computed in the following fashion: The type is the mediaType from the media field. The subType is determined by the protocol. The result is computed as the string of the form: type + '/' + subType The subType portion is computed in the following fashion. RTP/AVP the subType is returned as the codec name.
protected boolean	hasAttribute(String name) Checks if named attribute exists.
public void	removeAttribute(String name) Removes the attribute specified by the value parameter.
public void	removeBandwidth(String name) Removes the specified bandwidth type.
public void	setAttribute(String name, String value)
public void	setAttributeFields(Vector a) Sets the attribute fields member.
public void	setAttributes(Vector attributes) Adds the specified Attribute to this Description object.
public void	setBandwidth(String name, int value) Sets the value of the specified bandwidth type.
public void	setBandwidths(Vector bandwidths) Sets the value of the Bandwidth with the specified type.
public void	setConnection(ConnectionField conn) Sets the connection data for this entity.
public void	setConnectionField(ConnectionField c) Sets the connection field member.
public void	setInfo(InformationField i) Sets the i= field of this object.
public void	setInformationField(InformationField i) Sets the information field member.
public void	setKey(KeyField key) Sets encryption key information.
public void	setKeyField(KeyField k) Sets the key field member.
public void	setMedia(MediaField media) Sets the Media field of the description.
public void	setMediaField(MediaField m) Sets the media field member.
public String	toString() Returns encoded text.

Field Detail

attributeFields
protected Vector attributeFields(Code)
	Connection attributes.

bandwidthFields
protected Vector bandwidthFields(Code)
	Vector of bandwidths.

connectionField
protected ConnectionField connectionField(Code)
	Current connection.

informationField
protected InformationField informationField(Code)
	Extra information field.

keyField
protected KeyField keyField(Code)
	Key field.

mediaField
protected MediaField mediaField(Code)
	Media type field.

Constructor Detail

MediaDescriptionImpl
public MediaDescriptionImpl()(Code)
	Default constructor.

Method Detail

addAttribute
protected void addAttribute(AttributeField af)(Code)
	Adds a new attirbute to the list. Parameters: af - the attribute field to be processed

addBandwidthField
public void addBandwidthField(BandwidthField b)(Code)
	Sets the bandwidth field member. Parameters: b - the new bandwidth field

addDynamicPayloads
public void addDynamicPayloads(Vector payloadNames, Vector payloadValues) throws SdpException(Code)
	Adds dynamic media types to the description. Parameters: payloadNames - a Vector of String - each one the name of a dynamic payload to be added (usually an integer largerthan SdpConstants.AVP_DYNAMIC_MIN). Parameters: payloadValues - a Vector of String - each contains the value describing the correlated dynamic payloads to be added throws: SdpException - if either vector is null or empty.if the vector sizes are unequal.

encode
public String encode()(Code)
	Encodes to a canonical form. encoded string of object contents since: v1.0

getAttribute
public String getAttribute(String name) throws SdpParseException(Code)
	Returns the value of the specified attribute. Parameters: name - the name of the attribute. throws: SdpParseException - the value of the named attribute

getAttributeFields
public Vector getAttributeFields()(Code)
	Gets the attributes filed. the vector of attributes

getAttributes
public Vector getAttributes(boolean create)(Code)
	Returns the set of attributes for this Description as a Vector of Attribute objects in the order they were parsed. Parameters: create - specifies whether to return null or a new empty Vector in caseno attributes exists for this Description attributes for this Description

getBandwidth
public int getBandwidth(String name) throws SdpParseException(Code)
	Returns the integer value of the specified bandwidth name. Parameters: name - the name of the bandwidth type. throws: SdpParseException - if a parsing error occurs the value of the named bandwidth

getBandwidths
public Vector getBandwidths(boolean create)(Code)
	Returns the Bandwidth of the specified type. Parameters: create - type of the Bandwidth to return the Bandwidth or null if undefined

getConnection
public ConnectionField getConnection()(Code)
	Returns the connection information associated with this object. This may be null for SessionDescriptions if all Media objects have a connection object and may be null for Media objects if the corresponding session connection is non-null. connection

getConnectionField
public ConnectionField getConnectionField()(Code)
	Gets the connection filed the connection firld

getInfo
public InformationField getInfo()(Code)
	Returns value of the info field (i=) of this object. value of the info field (i=) of this object.

getInformationField
public InformationField getInformationField()(Code)
	Gets the information field. the information field

getKey
public KeyField getKey()(Code)
	Returns the key data. the key data.

getKeyField
public KeyField getKeyField()(Code)
	Gets the key field. the key field

getMedia
public MediaField getMedia()(Code)
	Returns the Media field of the description. the Media field of the description.

getMediaField
public MediaField getMediaField()(Code)
	Gets the media field the media field

getMimeParameters

public Vector getMimeParameters() throws SdpException(Code)

Returns a Vector containing a string of parameters for each of the codecs in this description.

A parameter string is computed for each codec.

The parameter string is computed in the following fashion.

The rate is extracted from the rtpmap or static data.

The number of channels is extracted from the rtpmap or static data.

The ptime is extracted from the ptime attribute.

The maxptime is extracted from the maxptime attribute.

Any additional parameters are extracted from the ftmp attribute.
throws:
SdpException - if there is a problem extracting the parameters. a Vector containing a string of parameters for each of the codecs in this description.

getMimeTypes

public Vector getMimeTypes() throws SdpException(Code)

Returns a Vector containing a string indicating the MIME type for each of the codecs in this description.

A MIME value is computed for each codec in the media description.

The MIME type is computed in the following fashion: The type is the mediaType from the media field. The subType is determined by the protocol.

The result is computed as the string of the form:

 type + '/' + subType

The subType portion is computed in the following fashion. RTP/AVP the subType is returned as the codec name. This will either be extracted from the rtpmap attribute or computed. other the protocol is returned as the subType.

If the protocol is RTP/AVP and the rtpmap attribute for a codec is absent, then the codec name will be computed in the following fashion. String indexed in table SdpConstants.avpTypeNames if the value is an int greater than or equal to 0 and less than AVP_DEFINED_STATIC_MAX, and has been assigned a value. SdpConstant.RESERVED if the value is an int greater than or equal to 0 and less than AVP_DEFINED_STATIC_MAX, and has not been assigned a value. SdpConstant.UNASSIGNED An int greater than or equal to AVP_DEFINED_STATIC_MAX and less than AVP_DYNAMIC_MIN - currently unassigned. SdpConstant.DYNAMIC Any int less than 0 or greater than or equal to AVP_DYNAMIC_MIN
throws:
SdpException - if there is a problem extracting the parameters. a Vector containing a string indicating the MIME type for each of the codecs in this description

hasAttribute
protected boolean hasAttribute(String name)(Code)
	Checks if named attribute exists. Parameters: name - the attribute to check true is attribute is found

removeAttribute
public void removeAttribute(String name)(Code)
	Removes the attribute specified by the value parameter. Parameters: name - the name of the attribute.

removeBandwidth
public void removeBandwidth(String name)(Code)
	Removes the specified bandwidth type. Parameters: name - the name of the bandwidth type.

setAttribute
public void setAttribute(String name, String value) throws SdpException(Code)
	Sets the value of the specified attribute Parameters: name - the name of the attribute. Parameters: value - the value of the named attribute. throws: SdpException - if the parameters are null

setAttributeFields
public void setAttributeFields(Vector a)(Code)
	Sets the attribute fields member. Parameters: a - the new vector of attributes

setAttributes
public void setAttributes(Vector attributes) throws SdpException(Code)
	Adds the specified Attribute to this Description object. Parameters: attributes - the attribute to add throws: SdpException - if the attributes is null

setBandwidth
public void setBandwidth(String name, int value) throws SdpException(Code)
	Sets the value of the specified bandwidth type. Parameters: name - the name of the bandwidth type. Parameters: value - the value of the named bandwidth type. throws: SdpException - if the name is null

setBandwidths
public void setBandwidths(Vector bandwidths) throws SdpException(Code)
	Sets the value of the Bandwidth with the specified type. Parameters: bandwidths - type of the Bandwidth object whose value is requested throws: SdpException - if vector is null

setConnection
public void setConnection(ConnectionField conn) throws SdpException(Code)
	Sets the connection data for this entity. Parameters: conn - to set throws: SdpException - if the connexion is null

setConnectionField
public void setConnectionField(ConnectionField c)(Code)
	Sets the connection field member. Parameters: c - the new connection field

setInfo
public void setInfo(InformationField i) throws SdpException(Code)
	Sets the i= field of this object. Parameters: i - to set throws: SdpException - if the info is null

setInformationField
public void setInformationField(InformationField i)(Code)
	Sets the information field member. Parameters: i - the new information filed

setKey
public void setKey(KeyField key) throws SdpException(Code)
	Sets encryption key information. This consists of a method and an encryption key included inline. Parameters: key - the encryption key data; depending on method may be null throws: SdpException - if the key is null

setKeyField
public void setKeyField(KeyField k)(Code)
	Sets the key field member. Parameters: k - the new key field

setMedia
public void setMedia(MediaField media) throws SdpException(Code)
	Sets the Media field of the description. Parameters: media - to set throws: SdpException - if the media field is null

setMediaField
public void setMediaField(MediaField m)(Code)
	Sets the media field member. Parameters: m - the new media field

toString
public String toString()(Code)
	Returns encoded text. encoded string of object contents

Methods inherited from java.lang.Object

public boolean equals(Object obj)(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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