to.etc.domui.util.images

Interface IStreamingImageInfo

public interface IStreamingImageInfo

This gets returned by the streaming image factory classes.

Author:

Frits Jalvingh Created on Oct 2, 2008

Method Summary

Modifier and Type	Method and Description
ImageInfo	getImageData() This returns the image's data if that data is available.
InputStream	getInputStream() Returns the datastream containing this image.
long	getLastModifiedDate(String key) If this retriever accesses resources that can change after use this must return some usable indication of the version, usually a "last date changed" timestamp.
String	getMimeType()

Method Detail

getLastModifiedDate

long getLastModifiedDate(String key)
                  throws Exception

If this retriever accesses resources that can change after use this must return some usable indication of the version, usually a "last date changed" timestamp. This value should remain unchanged over invocations if the object accessed has not changed. It should return -1 if the source object has been deleted; it should return 0 if the timestamp does not matter.

Returns:

Throws:

Exception

getMimeType

String getMimeType()
            throws Exception

Throws:

Exception

getImageData

ImageInfo getImageData()
                throws Exception

This returns the image's data if that data is available. If not this returns null.

Returns:

Throws:

Exception

getInputStream

InputStream getInputStream()
                    throws Exception

Returns the datastream containing this image. This may be called only ONCE for an image and must be closed after use.

Returns:

Throws:

Exception