Package com.storedobject.core

Class StreamDataContent

java.lang.Object

com.storedobject.core.StreamDataContent

All Implemented Interfaces:

Executable, ContentProducer, ContentType, RequiresTransactionManager, Runnable

public class StreamDataContent
extends Object
implements ContentProducer

Constructor Summary

Constructors

Constructor	Description
StreamDataContent(StreamData sd)
StreamDataContent(StreamData sd, String fileName)

Method Summary

Modifier and Type	Method	Description
InputStream	getContent()	Retrieves the content as an InputStream.
String	getContentType()
String	getFileExtension()	Retrieves the file extension associated with the content.
String	getFileName()	Retrieves the name of the file associated with the content.
String	getLink()
boolean	isLink()
void	produce()	Certain types of content may have to be produced.
void	setFileName(String fileName)
void	setTransactionManager(TransactionManager tm)	Sets the transaction manager for this object.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.storedobject.core.ContentProducer

abort, execute, extractContent, getEntity, getError, getStreamData, getStreamDataProvider, getSystemEntity, getTransactionManager, ready, saveTo, saveTo, saveTo, saveTo

Methods inherited from interface com.storedobject.core.ContentType

getMimeType, isAudio, isHTML, isImage, isMedia, isPDF, isText, isVideo

Methods inherited from interface com.storedobject.common.Executable

act, run

Constructor Details

StreamDataContent

public StreamDataContent(StreamData sd)

StreamDataContent

public StreamDataContent(StreamData sd,
 String fileName)

Method Details

produce

public void produce()

Description copied from interface: ContentProducer

Certain types of content may have to be produced. This method is used to do that.

Specified by:

produce in interface ContentProducer

getContent

public InputStream getContent()
                       throws Exception

Description copied from interface: ContentProducer

Retrieves the content as an InputStream.

Note: This may not invoke ContentProducer.produce() and it may just return the content if it is already available. It is implementation-dependent.

Specified by:

getContent in interface ContentProducer

Returns:

an InputStream representing the content. This may be null if the content is not yet available.

Throws:

Exception - if there is an error during content retrieval

getContentType

public String getContentType()

Specified by:

getContentType in interface ContentType

getFileName

public String getFileName()

Description copied from interface: ContentProducer

Retrieves the name of the file associated with the content.

Specified by:

getFileName in interface ContentProducer

Returns:

a String representing the name of the file, or null if the file name is unavailable.

setFileName

public void setFileName(String fileName)

getFileExtension

public String getFileExtension()

Description copied from interface: ContentProducer

Retrieves the file extension associated with the content.

Specified by:

getFileExtension in interface ContentProducer

Returns:

a String representing the file extension, or an empty string if no extension is available.

setTransactionManager

public void setTransactionManager(TransactionManager tm)

Description copied from interface: RequiresTransactionManager

Sets the transaction manager for this object. The transaction manager is responsible for managing transaction boundaries.

Specified by:

setTransactionManager in interface RequiresTransactionManager

Parameters:

tm - the transaction manager to be set

isLink

public boolean isLink()

Specified by:

isLink in interface ContentType

getLink

public String getLink()

Specified by:

getLink in interface ContentType