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# XML Registry: Configuration

Configuration Options Related Tasks Related Topics

Use this page to configure an XML registry, in particular to specify the implementation classes that WebLogic Server uses, by default, for the factories used to obtain DOM and SAX parsers and transformers. These classes are used by all applications that run on WebLogic Server.

The values you enter in the fields of this page are used by default by all applications that run on WebLogic Server. If you want to specify a parser factory used for a particular document type (based on system ID, public ID, or root element), go to the Contents tab and create a Parser Select Entry.

Also use this page to specify when WebLogic Server should cache external entities that are referenced with a URL.

#### Configuration Options

Name | Description
--- | ---
Name | The name of this XML Registry. MBean Attribute: `XMLRegistryMBean.Name` Changes take effect after you redeploy the module or restart the server.
Document Builder Factory | The fully qualified name of the class that implements the DocumentBuilderFactory interface. The `javax.xml.parsers.DocumentBuilderFactory` factory API enables applications deployed to WebLogic Server to obtain an XML parser that produces DOM object trees from XML documents. The built-in WebLogic Server DOM factory implementation class is `com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderFactoryImpl`. This is the factory class applications deployed to WebLogic Server get by default when they request a DOM parser. You can change this default by updating this value. Return the class name of the default DocumentBuilderFactory MBean Attribute: `XMLRegistryMBean.DocumentBuilderFactory`
SAX Parser Factory | The fully qualified name of the class that implements the SAXParserFactory interface. The `javax.xml.parsers.SAXParserFactory` factory API enables applications deployed to WebLogic Server to configure and obtain a SAX-based XML parser to parse XML documents. The built-in WebLogic Server SAX factory implementation class is `com.sun.org.apache.xerces.internal.jaxp.SAXParserFactoryImpl`. This is the factory class applications deployed to WebLogic Server get by default when they request a SAX parser. You can change this default by updating this value. Return the class name of the default SAXParserFactory MBean Attribute: `XMLRegistryMBean.SAXParserFactory`
Transformer Factory | The fully qualified name of the class that implements the TransformerFactory interface. The `javax.xml.transform.TransformerFactory` factory API enables applications deployed to WebLogic Server to configure and obtain a `Transformer` object used to transform XML data into another format. The built-in WebLogic Server Transformer factory implementation class is `com.sun.org.apache.xalan.internal.xsltc.trax.TransformerFactoryIml`. This is the factory class applications deployed to WebLogic Server get by default when they request a Transformer object. You can change this default by updating this value. Return the class name of the default TransformerFactory MBean Attribute: `XMLRegistryMBean.TransformerFactory`
When To Cache | Specifies when WebLogic Server should cache external entities that it retrieves from the Web. When WebLogic Server resolves an external entity within an XML file and retrieves the entity from the Web, you can specify that WebLogic Server cache this entity only when the entity is first referenced, when WebLogic Server first starts up, or not at all. MBean Attribute: `XMLRegistryMBean.WhenToCache`

Related Tasks

- Update an existing XML registry
- View the associated XML registry
- Configure XML Resources
- Configure external entity resolution
- Associate a parser to a document type

Related Topics

- Programming WebLogic XML