org.apache.xmlbeans
Class XmlBeans

java.lang.Object
  org.apache.xmlbeans.XmlBeans

public final class XmlBeans

extends Object

Provides an assortment of utilities for managing XML Bean types, type systems, QNames, paths, and queries.

Field Summary

static SchemaType

NO_TYPE The SchemaType object given to an XmlObject instance when no type can be determined.

Method Summary

static String	compilePath(String pathExpr) Compiles an XPath, returning a String equal to that which was passed, but whose identity is that of one which has been precompiled and cached.
static String	compilePath(String pathExpr, XmlOptions options) Compiles an XPath, returning a String equal to that which was passed, but whose identity is that of one which has been precompiled and cached; takes an option for specifying text that indicates the name of context node.
static String	compileQuery(String queryExpr) Compiles an XQuery, returning a String equal to that which was passed, but whose identity is that of one which has been precompiled and cached.
static String	compileQuery(String queryExpr, XmlOptions options) Compiles an XQuery, returning a String equal to that which was passed, but whose identity is that of one which has been precompiled and cached; takes an option for specifying text that indicates the context node.
static SchemaTypeSystem	compileXmlBeans(String name, SchemaTypeSystem system, XmlObject[] schemas, BindingConfig config, SchemaTypeLoader typepath, Filer filer, XmlOptions options) Returns the SchemaTypeSystem that results from augumenting the SchemaTypeSystem passed in by incrementally adding the given XML schema definitions.
static SchemaTypeSystem	compileXsd(SchemaTypeSystem system, XmlObject[] schemas, SchemaTypeLoader typepath, XmlOptions options) Returns the SchemaTypeSystem that results from augumenting the SchemaTypeSystem passed in by incrementally adding the given XML schema definitions.
static SchemaTypeSystem	compileXsd(XmlObject[] schemas, SchemaTypeLoader typepath, XmlOptions options) Returns the SchemaTypeSystem that results from compiling the XML schema definitions passed.
static SchemaTypeSystem	getBuiltinTypeSystem() Returns the builtin type system.
static SchemaTypeLoader	getContextTypeLoader() Gets the SchemaTypeLoader based on the current thread's context ClassLoader.
static QName	getQName(String localPart) Obtains a name from the thread local QNameCache
static QName	getQName(String namespaceUri, String localPart) Obtains a name from the thread local QNameCache
static QNameCache	getQNameCache() Returns a thread local QNameCache
static String	getTitle() Returns the XmlBeans Package title, "org.apache.xmlbeans", the value of XmlBeans.class.getPackage().getImplementationTitle().
static String	getVendor() Returns the XmlBeans vendor, "Apache Software Foundation", the value of XmlBeans.class.getPackage().getImplementationVendor().
static String	getVersion() Returns the XmlBeans version, the value of XmlBeans.class.getPackage().getImplementationVersion().
static SchemaTypeLoader	loadXsd(XmlObject[] schemas) Returns the SchemaTypeSystem that results from compiling the XML schema definitions passed.
static SchemaTypeLoader	loadXsd(XmlObject[] schemas, XmlOptions options) Returns the SchemaTypeSystem that results from compiling the XML schema definitions passed in schemas.
static XmlCursor	nodeToCursor(Node n) Creates an XmlCursor for a DOM node which is implemented by XmlBwans
static XmlObject	nodeToXmlObject(Node n) Creates an XmlObject for a DOM node which is implemented by XmlBwans
static XMLStreamReader	nodeToXmlStreamReader(Node n) Creates an XmlObject for a DOM node which is implemented by XmlBwans
static ResourceLoader	resourceLoaderForPath(File[] path) Returns a new ResourceLoader for a search path where each component of the path is either a directory or a compiled xbean jar.
static Node	streamToNode(XMLStreamReader xs) Returns the XmlObject for a DOM node which is implemented by XmlBwans
static SchemaType	typeForClass(Class c) Returns the SchemaType from a corresponding XmlObject subclass, or null if none.
static SchemaTypeLoader	typeLoaderForClassLoader(ClassLoader loader) Returns a SchemaTypeLoader that searches for compiled schema types in the given ClassLoader.
static SchemaTypeLoader	typeLoaderForResource(ResourceLoader resourceLoader) Returns a SchemaTypeLoader that searches for compiled schema types in the given ResourceLoader.
static SchemaTypeLoader	typeLoaderUnion(SchemaTypeLoader[] typeLoaders) Returns the union of a list of typeLoaders.

Methods inherited from class java.lang.Object

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

Field Detail

NO_TYPE

public static SchemaType NO_TYPE

The SchemaType object given to an XmlObject instance when no type can be determined.

The NO_TYPE is the universal derived type. That is, it is derived from all other schema types, and no instances of the NO_TYPE are valid. (It is not to be confused with the anyType, which is the universal base type from which all other types can be derived, and of which all instances are valid.)

Method Detail

getTitle

public static final String getTitle()

Returns the XmlBeans Package title, "org.apache.xmlbeans", the value of XmlBeans.class.getPackage().getImplementationTitle().

getVendor

public static final String getVendor()

Returns the XmlBeans vendor, "Apache Software Foundation", the value of XmlBeans.class.getPackage().getImplementationVendor().

getVersion

public static final String getVersion()

Returns the XmlBeans version, the value of XmlBeans.class.getPackage().getImplementationVersion().

getQNameCache

public static QNameCache getQNameCache()

Returns a thread local QNameCache

getQName

public static QName getQName(String localPart)

Obtains a name from the thread local QNameCache

getQName

public static QName getQName(String namespaceUri,
                             String localPart)

Obtains a name from the thread local QNameCache

compilePath

public static String compilePath(String pathExpr)
                          throws XmlException

Compiles an XPath, returning a String equal to that which was passed, but whose identity is that of one which has been precompiled and cached.

Throws:

XmlException

compilePath

public static String compilePath(String pathExpr,
                                 XmlOptions options)
                          throws XmlException

Compiles an XPath, returning a String equal to that which was passed, but whose identity is that of one which has been precompiled and cached; takes an option for specifying text that indicates the name of context node. The default is "this", as in "$this".

Parameters:

options - Options for the path. For example, you can call the XmlOptions.setXqueryCurrentNodeVar(String) method to specify a particular name for the expression variable that indicates the context node.

Throws:

XmlException

compileQuery

public static String compileQuery(String queryExpr)
                           throws XmlException

Compiles an XQuery, returning a String equal to that which was passed, but whose identity is that of one which has been precompiled and cached.

Throws:

XmlException

compileQuery

public static String compileQuery(String queryExpr,
                                  XmlOptions options)
                           throws XmlException

Compiles an XQuery, returning a String equal to that which was passed, but whose identity is that of one which has been precompiled and cached; takes an option for specifying text that indicates the context node.

Parameters:

options - Options for the query. For example, you can call the XmlOptions.setXqueryCurrentNodeVar(String) method to specify a particular name for the expression variable that indicates the context node.

Throws:

XmlException

getContextTypeLoader

public static SchemaTypeLoader getContextTypeLoader()

Gets the SchemaTypeLoader based on the current thread's context ClassLoader. This is the SchemaTypeLoader that is used to assign schema types to XML documents by default. The SchemaTypeLoader is also consulted to resolve wildcards and xsi:type attributes.

The "parse" methods of XmlBeans all delegate to the "parseInstance" methods of the context type loader.

getBuiltinTypeSystem

public static SchemaTypeSystem getBuiltinTypeSystem()

Returns the builtin type system. This SchemaTypeSystem contains only the 46 builtin types defined by the XML Schema specification.

nodeToCursor

public static XmlCursor nodeToCursor(Node n)

Creates an XmlCursor for a DOM node which is implemented by XmlBwans

nodeToXmlObject

public static XmlObject nodeToXmlObject(Node n)

Creates an XmlObject for a DOM node which is implemented by XmlBwans

nodeToXmlStreamReader

public static XMLStreamReader nodeToXmlStreamReader(Node n)

Creates an XmlObject for a DOM node which is implemented by XmlBwans

streamToNode

public static Node streamToNode(XMLStreamReader xs)

Returns the XmlObject for a DOM node which is implemented by XmlBwans

loadXsd

public static SchemaTypeLoader loadXsd(XmlObject[] schemas)
                                throws XmlException

Returns the SchemaTypeSystem that results from compiling the XML schema definitions passed.

Just like compileXsd, but uses the context type loader for linking, and returns a unioned typeloader that is suitable for creating instances.

Throws:

XmlException

loadXsd

public static SchemaTypeLoader loadXsd(XmlObject[] schemas,
                                       XmlOptions options)
                                throws XmlException

Returns the SchemaTypeSystem that results from compiling the XML schema definitions passed in schemas.

This is just like compileXsd, but uses the context type loader for linking, and returns a unioned typeloader that is suitable for creating instances.

Use the options parameter to specify one or both of the following:

• A collection instance that should be used as an error listener during compilation, as described in XmlOptions.setErrorListener(java.util.Collection).
• Whether validation should not be done when building the SchemaTypeSystem, as described in XmlOptions.setCompileNoValidation().

Parameters:

schemas - The schema definitions from which to build the schema type system.

options - Options specifying an error listener and/or validation behavior.

Throws:

XmlException

compileXsd

public static SchemaTypeSystem compileXsd(XmlObject[] schemas,
                                          SchemaTypeLoader typepath,
                                          XmlOptions options)
                                   throws XmlException

Returns the SchemaTypeSystem that results from compiling the XML schema definitions passed.

The XmlObjects passed in should be w3c <schema> elements whose type is org.w3c.x2001.xmlSchema.Schema. (That is, schema elements in the XML namespace http://www.w3c.org/2001/XMLSchema.) Also org.w3c.x2001.xmlSchema.SchemaDocument is permitted.

The optional second argument is a SchemaTypeLoader which will be consulted for already-compiled schema types which may be linked while processing the given schemas.

The SchemaTypeSystem that is returned should be combined (via typeLoaderUnion(org.apache.xmlbeans.SchemaTypeLoader[])) with the typepath typeloader in order to create a typeloader that can be used for creating and validating instances.

Use the options parameter to specify the following:

• A collection instance that should be used as an error listener during compilation, as described in XmlOptions.setErrorListener(java.util.Collection).
• Whether validation should not be done when building the SchemaTypeSystem, as described in XmlOptions.setCompileNoValidation().

Parameters:

schemas - The schema definitions from which to build the schema type system.

typepath - The path to already-compiled schema types for linking while processing.

options - Options specifying an error listener and/or validation behavior.

Throws:

XmlException

compileXsd

public static SchemaTypeSystem compileXsd(SchemaTypeSystem system,
                                          XmlObject[] schemas,
                                          SchemaTypeLoader typepath,
                                          XmlOptions options)
                                   throws XmlException

Returns the SchemaTypeSystem that results from augumenting the SchemaTypeSystem passed in by incrementally adding the given XML schema definitions.

These could be new definitions (if the Schema document is not recorded into the existing SchemaTypeSystem), modifications to the already existing definitions (if the Schema document is already recorded in the existing SchemaTypeSystem), or deletions (if the Schema document is already recorded in the existing SchemaTypeSystem and the new definitions are empty). The identity of documents is established using XmlDocumentProperties.getSourceName(), so if the caller choses to construct the Schema definitions using other methods than parsing an XML document, they should make sure that the names returned by that method are consistent with the caller's intent (add/modify).

The XmlObjects passed in should be w3c <schema> elements whose type is org.w3c.x2001.xmlSchema.Schema. (That is, schema elements in the XML namespace http://www.w3c.org/2001/XMLSchema.) Also org.w3c.x2001.xmlSchema.SchemaDocument is permitted.

The optional second argument is a SchemaTypeLoader which will be consulted for already-compiled schema types which may be linked while processing the given schemas.

The SchemaTypeSystem that is returned should be combined (via typeLoaderUnion(org.apache.xmlbeans.SchemaTypeLoader[])) with the typepath typeloader in order to create a typeloader that can be used for creating and validating instances.

Use the options parameter to specify the following:

• A collection instance that should be used as an error listener during compilation, as described in XmlOptions.setErrorListener(java.util.Collection).
• Whether validation should not be done when building the SchemaTypeSystem, as described in XmlOptions.setCompileNoValidation().

Parameters:

schemas - The schema definitions from which to build the schema type system.

typepath - The path to already-compiled schema types for linking while processing.

options - Options specifying an error listener and/or validation behavior.

Throws:

XmlException

compileXmlBeans

public static SchemaTypeSystem compileXmlBeans(String name,
                                               SchemaTypeSystem system,
                                               XmlObject[] schemas,
                                               BindingConfig config,
                                               SchemaTypeLoader typepath,
                                               Filer filer,
                                               XmlOptions options)
                                        throws XmlException

Returns the SchemaTypeSystem that results from augumenting the SchemaTypeSystem passed in by incrementally adding the given XML schema definitions.

These could be new definitions (if the Schema document is not recorded into the existing SchemaTypeSystem), modifications to the already existing definitions (if the Schema document is already recorded in the existing SchemaTypeSystem), or deletions (if the Schema document is already recorded in the existing SchemaTypeSystem and the new definitions are empty). The identity of documents is established using XmlDocumentProperties.getSourceName(), so if the caller choses to construct the Schema definitions using other methods than parsing an XML document, they should make sure that the names returned by that method are consistent with the caller's intent (add/modify).

The XmlObjects passed in should be w3c <schema> elements whose type is org.w3c.x2001.xmlSchema.Schema. (That is, schema elements in the XML namespace http://www.w3c.org/2001/XMLSchema.) Also org.w3c.x2001.xmlSchema.SchemaDocument is permitted.

The optional name argument is used to name the compiled schema type system. A randomly generated name will be used if the name is null.

The optional BindingConfig argument is used to control the shape of the generated code. A BindingConfig isn't used if Filer is null.

The optional SchemaTypeLoader argument will be consulted for already-compiled schema types which may be linked while processing the given schemas. If not specified, the context typeloader (as returned by getContextTypeLoader()) will be used.

The optional Filer argument is used to create new binary or source files which are the product of the compilation. If the Filer is null, the schema binaries (.xsb) files and source files won't be generated.

The SchemaTypeSystem that is returned should be combined (via typeLoaderUnion(org.apache.xmlbeans.SchemaTypeLoader[])) with the typepath typeloader in order to create a typeloader that can be used for creating and validating instances.

Use the options parameter to specify the following:

• A collection instance that should be used as an error listener during compilation, as described in XmlOptions.setErrorListener(java.util.Collection).
• Whether validation should not be done when building the SchemaTypeSystem, as described in XmlOptions.setCompileNoValidation().

Parameters:

name - The type system name or null to use a randomly generated name.

system - A pre-existing SchemaTypeSystem used in incremental compilation.

schemas - The schema definitions from which to build the schema type system.

config - The configuration controls the code generation shape.

typepath - The path to already-compiled schema types for linking while processing.

filer - The Filer instance used to create binary binding files and source text files.

options - Options specifying an error listener and/or validation behavior.

Throws:

XmlException

typeLoaderUnion

public static SchemaTypeLoader typeLoaderUnion(SchemaTypeLoader[] typeLoaders)

Returns the union of a list of typeLoaders. The returned SchemaTypeLoader searches the given list of SchemaTypeLoaders in order from first to last.

typeLoaderForClassLoader

public static SchemaTypeLoader typeLoaderForClassLoader(ClassLoader loader)

Returns a SchemaTypeLoader that searches for compiled schema types in the given ClassLoader.

typeLoaderForResource

public static SchemaTypeLoader typeLoaderForResource(ResourceLoader resourceLoader)

Returns a SchemaTypeLoader that searches for compiled schema types in the given ResourceLoader.

See Also:

resourceLoaderForPath(File[])

resourceLoaderForPath

public static ResourceLoader resourceLoaderForPath(File[] path)

Returns a new ResourceLoader for a search path where each component of the path is either a directory or a compiled xbean jar.

typeForClass

public static SchemaType typeForClass(Class c)

Returns the SchemaType from a corresponding XmlObject subclass, or null if none.