Module java.xml
Package javax.xml.catalog

## Class CatalogManager

- java.lang.Object
- - javax.xml.catalog.CatalogManager

-     public final class CatalogManager
      extends Object

  The Catalog Manager manages the creation of XML Catalogs and Catalog Resolvers.
  Since:
    9

- - ### Method Summary

    All Methods Static Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `static Catalog` | `catalog​(CatalogFeatures features, URI... uris)` | Creates a `Catalog` object using the specified feature settings and uri(s) to one or more catalog files.
    `static CatalogResolver` | `catalogResolver​(Catalog catalog)` | Creates an instance of a `CatalogResolver` using the specified catalog.
    `static CatalogResolver` | `catalogResolver​(CatalogFeatures features, URI... uris)` | Creates an instance of a `CatalogResolver` using the specified feature settings and uri(s) to one or more catalog files.

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Method Detail

    - #### catalog

          public static Catalog catalog​(CatalogFeatures features,
                                        URI... uris)

      Creates a `Catalog` object using the specified feature settings and uri(s) to one or more catalog files.

      If `uris` is empty, system property `javax.xml.catalog.files`, as defined in `CatalogFeatures`, will be read to locate the initial list of catalog files.

      If multiple catalog files are specified through the `uris` argument or `javax.xml.catalog.files` property, the first entry is considered the main catalog, while others are treated as alternative catalogs after those referenced by the `nextCatalog` elements in the main catalog.

      As specified in XML Catalogs, OASIS Standard V1.1, if a catalog entry is invalid, it is ignored. In case all entries are invalid, the resulting Catalog object will contain no Catalog elements. Any matching operation using the Catalog will return null.

      Parameters:
        `features` - the catalog features
        `uris` - uri(s) to one or more catalogs.
      Returns:
        an instance of a `Catalog`
      Throws:
        `IllegalArgumentException` - if either the URIs are not absolute or do not have a URL protocol handler for the URI scheme
        `CatalogException` - If an error occurs while parsing the catalog
        `SecurityException` - if access to the resource is denied by the security manager

    - #### catalogResolver

          public static CatalogResolver catalogResolver​(Catalog catalog)

      Creates an instance of a `CatalogResolver` using the specified catalog.
      Parameters:
        `catalog` - the catalog instance
      Returns:
        an instance of a `CatalogResolver`

    - #### catalogResolver

          public static CatalogResolver catalogResolver​(CatalogFeatures features,
                                                        URI... uris)

      Creates an instance of a `CatalogResolver` using the specified feature settings and uri(s) to one or more catalog files.

      If `uris` is empty, system property `javax.xml.catalog.files`, as defined in `CatalogFeatures`, will be read to locate the initial list of catalog files.

      If multiple catalog files are specified through the `uris` argument or `javax.xml.catalog.files` property, the first entry is considered the main catalog, while others are treated as alternative catalogs after those referenced by the `nextCatalog` elements in the main catalog.

      As specified in XML Catalogs, OASIS Standard V1.1, if a catalog entry is invalid, it is ignored. In case all entries are invalid, the resulting CatalogResolver object will contain no valid catalog. Any resolution operation using the resolver therefore will return as no mapping is found. See `CatalogResolver` for the behavior when no mapping is found.

      Parameters:
        `features` - the catalog features
        `uris` - the uri(s) to one or more catalogs
      Returns:
        an instance of a `CatalogResolver`
      Throws:
        `IllegalArgumentException` - if either the URIs are not absolute or do not have a URL protocol handler for the URI scheme
        `CatalogException` - If an error occurs while parsing the catalog
        `SecurityException` - if access to the resource is denied by the security manager