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java.lang.Object
  |
  +--org.apache.xml.resolver.Catalog
        |
        +--org.apache.tools.ant.types.resolver.ApacheCatalog
This class extends the Catalog class provided by Norman Walsh's
 resolver library in xml-commons in order to add classpath entity
 and URI resolution.  Since XMLCatalog already does classpath
 resolution, we simply add all CatalogEntry instances back to the
 controlling XMLCatalog instance.  This is done via a callback
 mechanism.  ApacheCatalog is only used for external
 catalog files.  Inline entries (currently <dtd>
 and <entity>) are not added to ApacheCatalog.
 See XMLCatalog.java for the details of the entity and URI
 resolution algorithms.
XMLCatalog.CatalogResolver| Field Summary | 
| Fields inherited from class org.apache.xml.resolver.Catalog | 
| base, BASE, CATALOG, catalogCwd, catalogEntries, catalogFiles, catalogManager, catalogs, default_override, DELEGATE_PUBLIC, DELEGATE_SYSTEM, DELEGATE_URI, DOCTYPE, DOCUMENT, DTDDECL, ENTITY, LINKTYPE, localCatalogFiles, localDelegate, NOTATION, OVERRIDE, PUBLIC, readerArr, readerMap, REWRITE_SYSTEM, REWRITE_URI, SGMLDECL, SYSTEM, URI | 
| Constructor Summary | |
| ApacheCatalog() | |
| Method Summary | |
|  void | addEntry(org.apache.xml.resolver.CatalogEntry entry)This method overrides the superclass method of the same name in order to add catalog entries back to the controlling XMLCatalog instance. | 
| protected  org.apache.xml.resolver.Catalog | newCatalog()Create a new ApacheCatalog instance. | 
|  void | setResolver(ApacheCatalogResolver resolver)Set the resolver object to callback. | 
| Methods inherited from class org.apache.xml.resolver.Catalog | 
| addDelegate, addReader, copyReaders, encodedByte, fixSlashes, getCatalogManager, getCurrentBase, getDefaultOverride, loadSystemCatalogs, makeAbsolute, normalizeURI, parseAllCatalogs, parseCatalog, parseCatalog, parseCatalog, parseCatalogFile, parsePendingCatalogs, resolveDoctype, resolveDocument, resolveEntity, resolveLocalPublic, resolveLocalSystem, resolveLocalURI, resolveNotation, resolvePublic, resolveSubordinateCatalogs, resolveSystem, resolveURI, setCatalogManager, setupReaders, unknownEntry | 
| Methods inherited from class java.lang.Object | 
| clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait | 
| Constructor Detail | 
public ApacheCatalog()
| Method Detail | 
protected org.apache.xml.resolver.Catalog newCatalog()
Create a new ApacheCatalog instance.
This method overrides the superclass method of the same name in order to set the resolver object for callbacks. The reason we have to do this is that internally Catalog creates a new instance of itself for each external catalog file processed. That is, if two external catalog files are processed, there will be a total of two ApacheCatalog instances, and so on.
newCatalog in class org.apache.xml.resolver.Catalogpublic void setResolver(ApacheCatalogResolver resolver)
public void addEntry(org.apache.xml.resolver.CatalogEntry entry)
This method overrides the superclass method of the same name in order to add catalog entries back to the controlling XMLCatalog instance. In this way, we can add classpath lookup for these entries.
When we add an external catalog file, the entries inside it get parsed by this method. Therefore, we override it to add each of them back to the controlling XMLCatalog instance. This is done by performing a callback to the ApacheCatalogResolver, which in turn calls the XMLCatalog.
XMLCatalog currently only understands PUBLIC
 and URI entry types, so we ignore the other types.
addEntry in class org.apache.xml.resolver.Catalogentry - The CatalogEntry to process.| 
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