Package net.ontopia.topicmaps.query.parser

Interface ParseContextIF

All Known Implementing Classes:

GlobalParseContext, LocalParseContext

public interface ParseContextIF

INTERNAL: Represents an interpretation context for tolog queries.

Field Summary

Fields

Modifier and Type	Field	Description
static int	ITEM_IDENTIFIER
static int	MODULE
static int	SUBJECT_IDENTIFIER
static int	SUBJECT_LOCATOR

Method Summary

Modifier and Type	Method	Description
LocatorIF	absolutify(String uriref)
void	addPredicate(PredicateIF predicate)	INTERNAL: Adds a new predicate to the context.
void	addPrefixBinding(String prefix, String uri, int qualification)	INTERNAL: Adds a prefix binding to the context.
void	dump()	INTERNAL: Used for debugging.
ModuleIF	getModule(String uri)
TMObjectIF	getObject(QName qname)
TMObjectIF	getObjectByItemId(String uri)
TMObjectIF	getObjectByObjectId(String id)
PredicateIF	getPredicate(TopicIF topic, boolean assoc)
PredicateIF	getPredicate(ParsedRule rule)
PredicateIF	getPredicate(QName qname, boolean assoc)	INTERNAL: Returns the named predicate, or null if it does not exist.
TopicIF	getTopic(QName qname)	INTERNAL: Interprets the given prefix and localname as a topic, returning null if none is found.
TopicIF	getTopicBySubjectIdentifier(String uri)
TopicIF	getTopicBySubjectLocator(String uri)
TopicMapIF	getTopicMap()	INTERNAL: Returns the topic map being parsed against.
boolean	isBuiltInPredicate(String name)	INTERNAL: Used to find out if the given predicate name is the name of a built-in predicate.
boolean	isLoading(String uri)	INTERNAL: Returns true if the uri is being loaded or has already been loaded.
LocatorIF	resolveQName(QName qname)	INTERNAL: Returns the full locator for the given QName, or reports an error if the prefix is unbound, or if the prefix is bound to something other than a subject identifier namespace (since this is used for the CTM part of tolog INSERT only).

Field Detail

SUBJECT_IDENTIFIER

static final int SUBJECT_IDENTIFIER

See Also:

Constant Field Values

SUBJECT_LOCATOR

static final int SUBJECT_LOCATOR

See Also:

Constant Field Values

ITEM_IDENTIFIER

static final int ITEM_IDENTIFIER

See Also:

Constant Field Values

MODULE

static final int MODULE

See Also:

Constant Field Values

Method Detail

getTopicMap

TopicMapIF getTopicMap()

INTERNAL: Returns the topic map being parsed against.

resolveQName

LocatorIF resolveQName(QName qname)

INTERNAL: Returns the full locator for the given QName, or reports an error if the prefix is unbound, or if the prefix is bound to something other than a subject identifier namespace (since this is used for the CTM part of tolog INSERT only). FIXME: what exception to throw?

addPrefixBinding

void addPrefixBinding(String prefix,
                      String uri,
                      int qualification)
               throws AntlrWrapException

INTERNAL: Adds a prefix binding to the context.

Parameters:

prefix - The prefix whose binding is being defined.

uri - The (possibly relative) URI reference to which the prefix is bound.

qualification - The interpretation of the URI. (Defined using local constants.)

Throws:

AntlrWrapException

addPredicate

void addPredicate(PredicateIF predicate)
           throws AntlrWrapException

INTERNAL: Adds a new predicate to the context.

Throws:

AntlrWrapException

getTopic

TopicIF getTopic(QName qname)
          throws AntlrWrapException

INTERNAL: Interprets the given prefix and localname as a topic, returning null if none is found.

Throws:

AntlrWrapException

getObject

TMObjectIF getObject(QName qname)
              throws AntlrWrapException

Throws:

AntlrWrapException

getPredicate

PredicateIF getPredicate(QName qname,
                         boolean assoc)
                  throws AntlrWrapException

INTERNAL: Returns the named predicate, or null if it does not exist.

Throws:

AntlrWrapException

getPredicate

PredicateIF getPredicate(TopicIF topic,
                         boolean assoc)

getPredicate

PredicateIF getPredicate(ParsedRule rule)

getModule

ModuleIF getModule(String uri)

absolutify

LocatorIF absolutify(String uriref)
              throws AntlrWrapException

Throws:

AntlrWrapException

getTopicBySubjectIdentifier

TopicIF getTopicBySubjectIdentifier(String uri)
                             throws AntlrWrapException

Throws:

AntlrWrapException

getTopicBySubjectLocator

TopicIF getTopicBySubjectLocator(String uri)
                          throws AntlrWrapException

Throws:

AntlrWrapException

getObjectByItemId

TMObjectIF getObjectByItemId(String uri)
                      throws AntlrWrapException

Throws:

AntlrWrapException

getObjectByObjectId

TMObjectIF getObjectByObjectId(String id)
                        throws AntlrWrapException

Throws:

AntlrWrapException

isLoading

boolean isLoading(String uri)

INTERNAL: Returns true if the uri is being loaded or has already been loaded. This method is used to make sure that there are no infinite recursion when importing modules.

isBuiltInPredicate

boolean isBuiltInPredicate(String name)

INTERNAL: Used to find out if the given predicate name is the name of a built-in predicate. Needed for error checking, see bug #1082.

dump

void dump()

INTERNAL: Used for debugging.