Package de.pangaea.metadataportal.processor

Class XPathResolverImpl

java.lang.Object

de.pangaea.metadataportal.processor.XPathResolverImpl

All Implemented Interfaces:

XPathFunctionResolver, XPathVariableResolver

public final class XPathResolverImpl
extends Object
implements XPathFunctionResolver, XPathVariableResolver

Helper class that implements several XPath interfaces to supply variables and functions to XPath expressions. This is a singleton!

Author:

Uwe Schindler

Field Summary

Fields

Modifier and Type	Field	Description
static Set<QName>	BASE_VARIABLES
static String	DOCUMENT_PROCESSOR_NAMESPACE
static QName	VARIABLE_DOC_DATESTAMP
static QName	VARIABLE_DOC_IDENTIFIER
static QName	VARIABLE_HARVESTER_ID

Method Summary

Modifier and Type	Method	Description
Map<QName,Object>	getCurrentVariableMap()
static XPathResolverImpl	getInstance()
Map<QName,Object>	initVariables()
XPathFunction	resolveFunction(QName functionName, int arity)
Object	resolveVariable(QName variableName)
void	unsetVariables()

Methods inherited from class java.lang.Object

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

Field Detail

DOCUMENT_PROCESSOR_NAMESPACE

public static final String DOCUMENT_PROCESSOR_NAMESPACE

VARIABLE_DOC_IDENTIFIER

public static final QName VARIABLE_DOC_IDENTIFIER

VARIABLE_DOC_DATESTAMP

public static final QName VARIABLE_DOC_DATESTAMP

VARIABLE_HARVESTER_ID

public static final QName VARIABLE_HARVESTER_ID

BASE_VARIABLES

public static final Set<QName> BASE_VARIABLES

Method Detail

getInstance

public static XPathResolverImpl getInstance()

resolveFunction

public XPathFunction resolveFunction(QName functionName,
                                     int arity)

Specified by:

resolveFunction in interface XPathFunctionResolver

resolveVariable

public Object resolveVariable(QName variableName)

Specified by:

resolveVariable in interface XPathVariableResolver

initVariables

public Map<QName,Object> initVariables()

getCurrentVariableMap

public Map<QName,Object> getCurrentVariableMap()

unsetVariables

public void unsetVariables()