Class ImageWriterRegistry
java.lang.Object
org.apache.xmlgraphics.image.writer.ImageWriterRegistry
Registry for
ImageWriter
implementations.-
Constructor Summary
ConstructorsConstructorDescriptionDefault constructor.ImageWriterRegistry
(Properties preferredOrder) Special constructor. -
Method Summary
Modifier and TypeMethodDescriptionstatic ImageWriterRegistry
getWriterFor
(String mime) Returns an ImageWriter that can be used to encode an image to the requested MIME type.void
register
(ImageWriter writer) Registers a new ImageWriter implementation in the registry.void
register
(ImageWriter writer, int priority) Registers a new ImageWriter implementation with the associated priority in the registry.
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Constructor Details
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ImageWriterRegistry
public ImageWriterRegistry()Default constructor. The default preferred order for the image writers is loaded from the resources. -
ImageWriterRegistry
Special constructor. The preferred order for the image writers can be specified as a Map (for example a Properties file). The entries of the Map consists of fully qualified class or package names as keys and integer numbers as values. Zero (0) is the default priority.- Parameters:
preferredOrder
- the map of order properties used to order the plug-ins
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Method Details
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getInstance
- Returns:
- a singleton instance of the ImageWriterRegistry.
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register
Registers a new ImageWriter implementation with the associated priority in the registry. Higher priorities get preference over lower priorities.- Parameters:
writer
- the ImageWriter instance to register.priority
- the priority of the writer in the registry.- See Also:
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register
Registers a new ImageWriter implementation in the registry. If an ImageWriter for the same target MIME type has already been registered, it is placed in an array based on priority.- Parameters:
writer
- the ImageWriter instance to register.
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getWriterFor
Returns an ImageWriter that can be used to encode an image to the requested MIME type.- Parameters:
mime
- the MIME type of the desired output format- Returns:
- a functional ImageWriter instance handling the desired output format or null if none can be found.
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