org.teiid.query.function.source
Class XMLSystemFunctions

java.lang.Object
  org.teiid.query.function.source.XMLSystemFunctions

public class XMLSystemFunctions
extends Object

This class contains scalar system functions supporting for XML manipulation.

Since:

4.2

Nested Class Summary

static class

XMLSystemFunctions.XmlConcat

Constructor Summary

XMLSystemFunctions()

Method Summary

static net.sf.saxon.value.AtomicValue	convertToAtomicValue(Object value)
static Source	convertToSource(Object value)
static String	escapeName(String name, boolean fully)
static XMLOutputFactory	getOutputFactory()
static SQLXML	jsonToXml(CommandContext context, String rootName, Blob json)
static SQLXML	jsonToXml(CommandContext context, String rootName, Clob json)
static SQLXMLImpl	saveToBufferManager(BufferManager bufferMgr, XMLTranslator translator) This method saves the given XML object to the buffer manager's disk process Documents less than the maxMemorySize will be held directly in memory
static void	validateXpath(String xpath) Validate whether the XPath is a valid XPath.
static XMLType	xmlComment(String comment)
static XMLType	xmlConcat(CommandContext context, XMLType xml, Object... other)
static XMLType	xmlElement(CommandContext context, String name, Evaluator.NameValuePair<String>[] namespaces, Evaluator.NameValuePair<?>[] attributes, List<?> contents) Basic support for xmlelement.
static XMLType	xmlForest(CommandContext context, Evaluator.NameValuePair[] namespaces, Evaluator.NameValuePair[] values)
static XMLType	xmlPi(String name)
static XMLType	xmlPi(String name, String content)
static String	xpathValue(Object doc, String xpath)
static ClobType	xslTransform(CommandContext context, Object xml, Object styleSheet)

Methods inherited from class java.lang.Object

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

Constructor Detail

XMLSystemFunctions

public XMLSystemFunctions()

Method Detail

getOutputFactory

public static XMLOutputFactory getOutputFactory()
                                         throws FactoryConfigurationError

Throws:

FactoryConfigurationError

xslTransform

public static ClobType xslTransform(CommandContext context,
                                    Object xml,
                                    Object styleSheet)
                             throws Exception

Throws:

Exception

xmlForest

public static XMLType xmlForest(CommandContext context,
                                Evaluator.NameValuePair[] namespaces,
                                Evaluator.NameValuePair[] values)
                         throws TeiidComponentException,
                                TeiidProcessingException

Throws:

TeiidComponentException

TeiidProcessingException

xmlElement

public static XMLType xmlElement(CommandContext context,
                                 String name,
                                 Evaluator.NameValuePair<String>[] namespaces,
                                 Evaluator.NameValuePair<?>[] attributes,
                                 List<?> contents)
                          throws TeiidComponentException,
                                 TeiidProcessingException

Basic support for xmlelement. namespaces are not yet supported.

Parameters:

context -

name -

contents -

Returns:

Throws:

TeiidComponentException

TeiidProcessingException

xmlConcat

public static XMLType xmlConcat(CommandContext context,
                                XMLType xml,
                                Object... other)
                         throws TeiidProcessingException

Throws:

TeiidProcessingException

xmlPi

public static XMLType xmlPi(String name)

xmlPi

public static XMLType xmlPi(String name,
                            String content)

convertToAtomicValue

public static net.sf.saxon.value.AtomicValue convertToAtomicValue(Object value)
                                                           throws TransformerException

Throws:

TransformerException

xmlComment

public static XMLType xmlComment(String comment)

convertToSource

public static Source convertToSource(Object value)
                              throws TeiidProcessingException

Throws:

TeiidProcessingException

xpathValue

public static String xpathValue(Object doc,
                                String xpath)
                         throws net.sf.saxon.trans.XPathException,
                                TeiidProcessingException

Throws:

net.sf.saxon.trans.XPathException

TeiidProcessingException

validateXpath

public static void validateXpath(String xpath)
                          throws net.sf.saxon.trans.XPathException

Validate whether the XPath is a valid XPath. If not valid, an XPathExpressionException will be thrown.

Parameters:

xpath - An xpath expression, for example: a/b/c/getText()

Throws:

XPathExpressionException

net.sf.saxon.trans.XPathException

escapeName

public static String escapeName(String name,
                                boolean fully)

jsonToXml

public static SQLXML jsonToXml(CommandContext context,
                               String rootName,
                               Blob json)
                        throws TeiidComponentException,
                               TeiidProcessingException,
                               SQLException,
                               IOException

Throws:

TeiidComponentException

TeiidProcessingException

SQLException

IOException

jsonToXml

public static SQLXML jsonToXml(CommandContext context,
                               String rootName,
                               Clob json)
                        throws TeiidComponentException,
                               TeiidProcessingException,
                               SQLException

Throws:

TeiidComponentException

TeiidProcessingException

SQLException

saveToBufferManager

public static SQLXMLImpl saveToBufferManager(BufferManager bufferMgr,
                                             XMLTranslator translator)
                                      throws TeiidComponentException,
                                             TeiidProcessingException

This method saves the given XML object to the buffer manager's disk process Documents less than the maxMemorySize will be held directly in memory

Throws:

TeiidComponentException

TeiidProcessingException