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package javax.xml.bind;
import javax.xml.transform.Result;
import java.io.IOException;
/**
* Controls where a JAXB implementation puts the generates
* schema files.
*
* <p>
* An implementation of this abstract class has to be provided by the calling
* application to generate schemas.
*
* <p>
* This is a class, not an interface so as to allow future versions to evolve
* without breaking the compatibility.
*
* @author
* Kohsuke Kawaguchi ([email protected])
*/
public abstract class SchemaOutputResolver {
/**
* Decides where the schema file (of the given namespace URI)
* will be written, and return it as a {@link Result} object.
*
* <p>
* This method is called only once for any given namespace.
* IOW, all the components in one namespace is always written
* into the same schema document.
*
* @param namespaceUri
* The namespace URI that the schema declares.
* Can be the empty string, but never be null.
* @param suggestedFileName
* A JAXB implementation generates an unique file name (like "schema1.xsd")
* for the convenience of the callee. This name can be
* used for the file name of the schema, or the callee can just
* ignore this name and come up with its own name.
* This is just a hint.
*
* @return
* a {@link Result} object that encapsulates the actual destination
* of the schema.
*
* If the {@link Result} object has a system ID, it must be an
* absolute system ID. Those system IDs are relativized by the caller and used
* for <xs:import> statements.
*
* If the {@link Result} object does not have a system ID, a schema
* for the namespace URI is generated but it won't be explicitly
* <xs:import>ed from other schemas.
*
* If {@code null} is returned, the schema generation for this
* namespace URI will be skipped.
*/
public abstract Result createOutput( String namespaceUri, String suggestedFileName ) throws IOException;
}
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