Package com.saxonica.xqj

Class SaxonXQMetaData

java.lang.Object

com.saxonica.xqj.SaxonXQMetaData

All Implemented Interfaces:

XQMetaData

public class SaxonXQMetaData
extends java.lang.Object
implements XQMetaData

Saxon implementation of the XQMetaData interface

Constructor Summary

Constructors

Constructor	Description
SaxonXQMetaData(SaxonXQConnection connection)	Create the metadata for a given Saxon configuration

Method Summary

Modifier and Type	Method	Description
int	getMaxExpressionLength()	Gets the maximum number of characters allowed in an expression in this data source.
int	getMaxUserNameLength()	Gets the maximum number of characters allowed in a user name.
int	getProductMajorVersion()	Gets the major version of this product.
int	getProductMinorVersion()	Gets the minor version of this product.
java.lang.String	getProductName()	Gets the name of this product.
java.lang.String	getProductVersion()	Gets the full version of this product.
java.util.Set	getSupportedXQueryEncodings()	Returns a set of java.lang.String, each of which specifies a character encoding method the XQJ implmentation supports to parse the XQuery query text.
java.lang.String	getUserName()	Gets the user name associated with this connection.
int	getXQJMajorVersion()	Gets the major version number of XQJ specification supported by this implementation.
int	getXQJMinorVersion()	Gets the minor version number of XQJ specification supported by this implementation.
java.lang.String	getXQJVersion()	Gets the full version of XQJ specification supported by this implementation.
boolean	isFullAxisFeatureSupported()	Query if XQuery full axis feature is supported in this connection.
boolean	isModuleFeatureSupported()	Query if XQuery module feature is supported in this connection.
boolean	isReadOnly()	Query if the associated conection is restricted for read only use.
boolean	isSchemaImportFeatureSupported()	Query if XQuery schema import feature is supported in this connection.
boolean	isSchemaValidationFeatureSupported()	Query if XQuery schema validation feature is supported in this connection.
boolean	isSerializationFeatureSupported()	Query if XQuery serialization feature is supported in this connection.
boolean	isStaticTypingExtensionsSupported()	Query if XQuery static typing extensions are supported in this connection.
boolean	isStaticTypingFeatureSupported()	Query if XQuery static typing feature is supported in this data source.
boolean	isTransactionSupported()	Query if transaction is supported in this data source.
boolean	isUserDefinedXMLSchemaTypeSupported()	Check if the user defined XML schema type is supported in this connection.
boolean	isXQueryEncodingDeclSupported()	Query if the XQuery encoding declaration is supported by the XQJ implementation.
boolean	isXQueryEncodingSupported(java.lang.String encoding)	Query if a character encoding method of the XQuery query text is supported by the XQJ implmentation.
boolean	isXQueryXSupported()	Query if XQueryX format is supported in this data source.
boolean	wasCreatedFromJDBCConnection()	Query if this connection was created from a JDBC connection.

Methods inherited from class java.lang.Object

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

Constructor Detail

SaxonXQMetaData

public SaxonXQMetaData(SaxonXQConnection connection)

Create the metadata for a given Saxon configuration

Parameters:

connection - the Saxon connection

Method Detail

getMaxExpressionLength

public int getMaxExpressionLength()
                           throws XQException

Description copied from interface: XQMetaData

Gets the maximum number of characters allowed in an expression in this data source.

Specified by:

getMaxExpressionLength in interface XQMetaData

Returns:

the maximum length of expression as an integer. A zero value means that there is no limit or the limit is unknown

Throws:

XQException - if the connection is no longer valid

getMaxUserNameLength

public int getMaxUserNameLength()
                         throws XQException

Description copied from interface: XQMetaData

Gets the maximum number of characters allowed in a user name.

Specified by:

getMaxUserNameLength in interface XQMetaData

Returns:

the maximum length of user name as an integer. A zero value means that there is no limit or the limit is unknown

Throws:

XQException - if the connection is no longer valid

getProductMajorVersion

public int getProductMajorVersion()
                           throws XQException

Description copied from interface: XQMetaData

Gets the major version of this product.

Specified by:

getProductMajorVersion in interface XQMetaData

Returns:

a integer indicating the major version of this product

Throws:

XQException - if the connection is no longer valid

getProductMinorVersion

public int getProductMinorVersion()
                           throws XQException

Description copied from interface: XQMetaData

Gets the minor version of this product.

Specified by:

getProductMinorVersion in interface XQMetaData

Returns:

a integer indicating the minor version of this product

Throws:

XQException - if the connection is no longer valid

getProductName

public java.lang.String getProductName()
                                throws XQException

Description copied from interface: XQMetaData

Gets the name of this product. The value of string returned by this method is implementation-defined.

Specified by:

getProductName in interface XQMetaData

Returns:

a string indicating the product name

Throws:

XQException - if the connection is no longer valid

getProductVersion

public java.lang.String getProductVersion()
                                   throws XQException

Description copied from interface: XQMetaData

Gets the full version of this product. The format and value of the string returned by this method is implementation-defined.

Specified by:

getProductVersion in interface XQMetaData

Returns:

a string indicating the product version

Throws:

XQException - if the connection is no longer valid

getSupportedXQueryEncodings

public java.util.Set getSupportedXQueryEncodings()
                                          throws XQException

Description copied from interface: XQMetaData

Returns a set of java.lang.String, each of which specifies a character encoding method the XQJ implmentation supports to parse the XQuery query text.

For an example, for an XQJ impmentation which is able to parse the XQuery encoded in "UTF-8" or "UTF-16", it returns a java.util.Set of "UTF-8" and "UTF-16".

If the implemetation is not able to generate a list of encodings supported, an empty set is returned. If a non-empty set is returned, the encodings returned in this set are guaranteed to be supported. Note that encodings not in the returned set might also be supported. For example, if the set has two encoding methods: 'UTF-8' and 'UTF-16', they are supported by the implementation. However, this does not mean 'Shift-Js' is not supported. It might be supported.

Specified by:

getSupportedXQueryEncodings in interface XQMetaData

Returns:

a java.util.Set of java.lang.String, each of which is an XQuery query text encoding method

Throws:

XQException - if the connection is no longer valid

getUserName

public java.lang.String getUserName()
                             throws XQException

Description copied from interface: XQMetaData

Gets the user name associated with this connection.

Specified by:

getUserName in interface XQMetaData

Returns:

the user's name

Throws:

XQException - if the connection is no longer valid

getXQJMajorVersion

public int getXQJMajorVersion()
                       throws XQException

Description copied from interface: XQMetaData

Gets the major version number of XQJ specification supported by this implementation.

Specified by:

getXQJMajorVersion in interface XQMetaData

Returns:

an integer indicating the XQJ major version

Throws:

XQException - if the connection is no longer valid

getXQJMinorVersion

public int getXQJMinorVersion()
                       throws XQException

Description copied from interface: XQMetaData

Gets the minor version number of XQJ specification supported by this implementation.

Specified by:

getXQJMinorVersion in interface XQMetaData

Returns:

an integer indicating the XQJ minor version

Throws:

XQException - if the connection is no longer valid

getXQJVersion

public java.lang.String getXQJVersion()
                               throws XQException

Description copied from interface: XQMetaData

Gets the full version of XQJ specification supported by this implementation.

Specified by:

getXQJVersion in interface XQMetaData

Returns:

a string indicating the version of XQJ specification

Throws:

XQException - if the connection is no longer valid

isFullAxisFeatureSupported

public boolean isFullAxisFeatureSupported()
                                   throws XQException

Description copied from interface: XQMetaData

Query if XQuery full axis feature is supported in this connection.

Specified by:

isFullAxisFeatureSupported in interface XQMetaData

Returns:

true if so; otherwise false

Throws:

XQException - if the connection is no longer valid

isModuleFeatureSupported

public boolean isModuleFeatureSupported()
                                 throws XQException

Description copied from interface: XQMetaData

Query if XQuery module feature is supported in this connection.

Specified by:

isModuleFeatureSupported in interface XQMetaData

Returns:

true if so; otherwise false

Throws:

XQException - if the connection is no longer valid

isReadOnly

public boolean isReadOnly()
                   throws XQException

Description copied from interface: XQMetaData

Query if the associated conection is restricted for read only use.

Specified by:

isReadOnly in interface XQMetaData

Returns:

true if the associated connection is for read-only; false otherwise

Throws:

XQException - if the connection is no longer valid

isSchemaImportFeatureSupported

public boolean isSchemaImportFeatureSupported()
                                       throws XQException

Description copied from interface: XQMetaData

Query if XQuery schema import feature is supported in this connection.

Specified by:

isSchemaImportFeatureSupported in interface XQMetaData

Returns:

true if so; otherwise false

Throws:

XQException - if the connection is no longer valid

isSchemaValidationFeatureSupported

public boolean isSchemaValidationFeatureSupported()
                                           throws XQException

Description copied from interface: XQMetaData

Query if XQuery schema validation feature is supported in this connection.

Specified by:

isSchemaValidationFeatureSupported in interface XQMetaData

Returns:

true if so; otherwise false

Throws:

XQException - if the connection is no longer valid

isSerializationFeatureSupported

public boolean isSerializationFeatureSupported()
                                        throws XQException

Description copied from interface: XQMetaData

Query if XQuery serialization feature is supported in this connection.

Specified by:

isSerializationFeatureSupported in interface XQMetaData

Returns:

true if so; otherwise false

Throws:

XQException - if the connection is no longer valid

isStaticTypingExtensionsSupported

public boolean isStaticTypingExtensionsSupported()
                                          throws XQException

Description copied from interface: XQMetaData

Query if XQuery static typing extensions are supported in this connection.

Specified by:

isStaticTypingExtensionsSupported in interface XQMetaData

Returns:

true if so; otherwise false

Throws:

XQException - if the connection is no longer valid

isStaticTypingFeatureSupported

public boolean isStaticTypingFeatureSupported()
                                       throws XQException

Description copied from interface: XQMetaData

Query if XQuery static typing feature is supported in this data source.

Specified by:

isStaticTypingFeatureSupported in interface XQMetaData

Returns:

true if so; otherwise false

Throws:

XQException - if the connection is no longer valid

isTransactionSupported

public boolean isTransactionSupported()
                               throws XQException

Description copied from interface: XQMetaData

Query if transaction is supported in this data source.

Specified by:

isTransactionSupported in interface XQMetaData

Returns:

true if so; otherwise false

Throws:

XQException - if the connection is no longer valid

isUserDefinedXMLSchemaTypeSupported

public boolean isUserDefinedXMLSchemaTypeSupported()
                                            throws XQException

Description copied from interface: XQMetaData

Check if the user defined XML schema type is supported in this connection. If this method returns true, then XQItemAccessor.instanceOf(XQItemType) must be able to determine if the type of an XQItemAccessor is an instance of the XQItemType even if either of them is a user defined XML schema type which is defined by the non-predefined XML schema. The pre-defined XML Schema refers to the XML schema whose schema URL is "http://www.w3.org/2001/XMLSchema"

Specified by:

isUserDefinedXMLSchemaTypeSupported in interface XQMetaData

Returns:

true if the user defined XML schema type is supported in this connection, false otherwise.

Throws:

XQException - if the connection is no longer valid

isXQueryEncodingDeclSupported

public boolean isXQueryEncodingDeclSupported()
                                      throws XQException

Description copied from interface: XQMetaData

Query if the XQuery encoding declaration is supported by the XQJ implementation.

Specified by:

isXQueryEncodingDeclSupported in interface XQMetaData

Returns:

true if the XQuery encoding declaration is supported; false otherwise

Throws:

XQException - if the connection is no longer valid

isXQueryEncodingSupported

public boolean isXQueryEncodingSupported(java.lang.String encoding)
                                  throws XQException

Description copied from interface: XQMetaData

Query if a character encoding method of the XQuery query text is supported by the XQJ implmentation.

Specified by:

isXQueryEncodingSupported in interface XQMetaData

Parameters:

encoding - String representing the character encoding method of the XQuery query text.

Returns:

true if an XQuery query character encoding method is supported, false otherwise

Throws:

XQException - if (1) the connection is no longer valid, or (2) the specified encoding parameter is null

isXQueryXSupported

public boolean isXQueryXSupported()
                           throws XQException

Description copied from interface: XQMetaData

Query if XQueryX format is supported in this data source.

Specified by:

isXQueryXSupported in interface XQMetaData

Returns:

true if so; otherwise false

Throws:

XQException - if the connection is no longer valid

wasCreatedFromJDBCConnection

public boolean wasCreatedFromJDBCConnection()
                                     throws XQException

Description copied from interface: XQMetaData

Query if this connection was created from a JDBC connection.

Specified by:

wasCreatedFromJDBCConnection in interface XQMetaData

Returns:

true, if this connection was created from a JDBC connection, false otherwise.

Throws:

XQException - if the connection is no longer valid