Module java.xml
Package javax.xml.transform

## Interface URIResolver

- All Known Subinterfaces:
    `CatalogResolver`

      public interface URIResolver

  An object that implements this interface that can be called by the processor to turn a URI used in document(), xsl:import, or xsl:include into a Source object.

  Since:
    1.4

- - ### Method Summary

    Modifier and Type | Method | Description
    --- | --- | ---
    `Source` | `resolve​(String href, String base)` | Called by the processor when it encounters an xsl:include, xsl:import, or document() function.

- - ### Method Detail

    - #### resolve

          Source resolve​(String href,
                         String base)
                  throws TransformerException

      Called by the processor when it encounters an xsl:include, xsl:import, or document() function.
      Parameters:
        `href` - An href attribute, which may be relative or absolute.
        `base` - The base URI against which the first argument will be made absolute if the absolute URI is required.
      Returns:
        A Source object, or null if the href cannot be resolved, and the processor should try to resolve the URI itself.
      Throws:
        `TransformerException` - if an error occurs when trying to resolve the URI.