## org.apache.xerces.util
Class EntityResolver2Wrapper

    java.lang.Object
      |
      +--org.apache.xerces.util.EntityResolver2Wrapper

All Implemented Interfaces:
  ExternalSubsetResolver, org.apache.xerces.xni.parser.XMLEntityResolver

public class EntityResolver2Wrapper
extends java.lang.Object
implements ExternalSubsetResolver

This class wraps a SAX entity resolver (EntityResolver2) in an XNI entity resolver.

Version:
  $Id: EntityResolver2Wrapper.java 447241 2006-09-18 05:12:57Z mrglavas $
Author:
  Michael Glavassevich, IBM

Field Summary
`protected org.xml.sax.ext.EntityResolver2` `fEntityResolver` An instance of SAX2 Extensions 1.1's EntityResolver2.

Constructor Summary
`EntityResolver2Wrapper()` Default constructor.
`EntityResolver2Wrapper(org.xml.sax.ext.EntityResolver2 entityResolver)` Creates a new instance wrapping the given SAX entity resolver.

Method Summary
`org.xml.sax.ext.EntityResolver2` `getEntityResolver()` Returns the SAX entity resolver wrapped by this object.
`org.apache.xerces.xni.parser.XMLInputSource` `getExternalSubset(org.apache.xerces.xni.grammars.XMLDTDDescription grammarDescription)` Locates an external subset for documents which do not explicitly provide one.
`org.apache.xerces.xni.parser.XMLInputSource` `resolveEntity(org.apache.xerces.xni.XMLResourceIdentifier resourceIdentifier)` Resolves an external parsed entity.
`void` `setEntityResolver(org.xml.sax.ext.EntityResolver2 entityResolver)` Sets the SAX entity resolver wrapped by this object.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### fEntityResolver

    protected org.xml.sax.ext.EntityResolver2 fEntityResolver

  An instance of SAX2 Extensions 1.1's EntityResolver2.

Constructor Detail

### EntityResolver2Wrapper

    public EntityResolver2Wrapper()

  Default constructor.

### EntityResolver2Wrapper

    public EntityResolver2Wrapper(org.xml.sax.ext.EntityResolver2 entityResolver)

  Creates a new instance wrapping the given SAX entity resolver.

  Parameters:
    `entityResolver` - the SAX entity resolver to wrap

Method Detail

### setEntityResolver

    public void setEntityResolver(org.xml.sax.ext.EntityResolver2 entityResolver)

  Sets the SAX entity resolver wrapped by this object.

  Parameters:
    `entityResolver` - the SAX entity resolver to wrap

### getEntityResolver

    public org.xml.sax.ext.EntityResolver2 getEntityResolver()

  Returns the SAX entity resolver wrapped by this object.

  Returns:
    the SAX entity resolver wrapped by this object

### getExternalSubset

    public org.apache.xerces.xni.parser.XMLInputSource getExternalSubset(org.apache.xerces.xni.grammars.XMLDTDDescription grammarDescription)
                                                                  throws org.apache.xerces.xni.XNIException,
                                                                         java.io.IOException

  Locates an external subset for documents which do not explicitly provide one. If no external subset is provided, this method should return `null`.

  Specified by:
    `getExternalSubset` in interface `ExternalSubsetResolver`
  Parameters:
    `grammarDescription` - a description of the DTD
  Throws:
    `org.apache.xerces.xni.XNIException` - Thrown on general error.
    `java.io.IOException` - Thrown if resolved entity stream cannot be opened or some other i/o error occurs.

### resolveEntity

    public org.apache.xerces.xni.parser.XMLInputSource resolveEntity(org.apache.xerces.xni.XMLResourceIdentifier resourceIdentifier)
                                                              throws org.apache.xerces.xni.XNIException,
                                                                     java.io.IOException

  Resolves an external parsed entity. If the entity cannot be resolved, this method should return null.
  Specified by:
    `resolveEntity` in interface `org.apache.xerces.xni.parser.XMLEntityResolver`
  Parameters:
    `resourceIdentifier` - contains the physical co-ordinates of the resource to be resolved
  Throws:
    `org.apache.xerces.xni.XNIException` - Thrown on general error.
    `java.io.IOException` - Thrown if resolved entity stream cannot be opened or some other i/o error occurs.

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