org.apache.xmlgraphics.image.loader.impl
Class AbstractImageLoaderFactory
java.lang.Object
org.apache.xmlgraphics.image.loader.impl.AbstractImageLoaderFactory
- All Implemented Interfaces:
- ImageLoaderFactory
- Direct Known Subclasses:
- ImageLoaderFactoryEPS, ImageLoaderFactoryImageIO, ImageLoaderFactoryInternalTIFF, ImageLoaderFactoryPNG, ImageLoaderFactoryRaw, ImageLoaderFactoryRawCCITTFax
public abstract class AbstractImageLoaderFactory
- extends Object
- implements ImageLoaderFactory
Abstract base class for ImageLoaderFactory implementations.
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
AbstractImageLoaderFactory
public AbstractImageLoaderFactory()
isSupported
public boolean isSupported(ImageInfo imageInfo)
- Indicates whether the given image (represented by an
ImageInfo
object) is supported
by the loader. By default, implementations return true assuming all images of the supported
MIME types can be processed correctly. In some cases, however, an ImageLoader may only
support a subset of a format because it offers an optimized way to embed the image in
the target format (for example: CCITT compressed TIFF files in PDF and PostScript). For
this to work, the preloader must register some information in the ImageInfo's custom
objects so the factory can identify if an image may or may not be supported.
- Specified by:
isSupported
in interface ImageLoaderFactory
- Parameters:
imageInfo
- the image info object
- Returns:
- true if the image is supported by the loaders generated by this factory
getUsagePenalty
public int getUsagePenalty(String mime,
ImageFlavor flavor)
- Deprecated. Redundancy with
ImageLoader.getUsagePenalty()
- Returns the usage penalty for a particular ImageLoader. This is used to select the best
ImageLoader implementation for loading an image.
- Specified by:
getUsagePenalty
in interface ImageLoaderFactory
- Parameters:
mime
- the MIME typeflavor
- the target image flavor
- Returns:
- the usage penalty (must be a non-negative integer)
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