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java.lang.Objectorg.apache.xmlgraphics.image.loader.impl.AbstractImagePreloader
Abstract base class for image preloaders. It provides helper methods for often-used tasks.
Field Summary |
Fields inherited from interface org.apache.xmlgraphics.image.loader.spi.ImagePreloader |
DEFAULT_PRIORITY |
Constructor Summary | |
AbstractImagePreloader()
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Method Summary | |
protected byte[] |
getHeader(javax.imageio.stream.ImageInputStream in,
int size)
Allows to read an image header (usually just a magic number). |
int |
getPriority()
Returns the priority of the preloader. The lower the value, the higher the preloader's priority. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface org.apache.xmlgraphics.image.loader.spi.ImagePreloader |
preloadImage |
Constructor Detail |
public AbstractImagePreloader()
Method Detail |
protected byte[] getHeader(javax.imageio.stream.ImageInputStream in, int size) throws java.io.IOException
in
- the ImageInputStream to read fromsize
- the size of the header
java.io.IOException
- if an I/O error occurs while reading the headerpublic int getPriority()
getPriority
in interface ImagePreloader
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