java.lang.Object
- net.ontopia.topicmaps.impl.basic.TMObject
- - net.ontopia.topicmaps.impl.basic.Topic

All Implemented Interfaces:

Serializable, TMObjectIF, TopicIF

Direct Known Subclasses:

RemoteTopic
```
public class Topic
extends TMObject
implements TopicIF
```
INTERNAL: The basic topic implementation.

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type	Field	Description
`protected Set<LocatorIF>`	`indicators`
`protected Set<TopicNameIF>`	`names`
`protected Set<OccurrenceIF>`	`occurs`
`protected ReifiableIF`	`reified`
`protected Set<AssociationRoleIF>`	`roles`
`protected UniqueSet<TopicIF>`	`scope`
`protected Set<LocatorIF>`	`subjects`
`protected UniqueSet<TopicIF>`	`types`

Fields inherited from class net.ontopia.topicmaps.impl.basic.TMObject
oid, parent, sources, topicmap

Fields inherited from interface net.ontopia.topicmaps.core.TMObjectIF
EVENT_ADD_ITEMIDENTIFIER, EVENT_REMOVE_ITEMIDENTIFIER, MSG_NULL_ARGUMENT

Fields inherited from interface net.ontopia.topicmaps.core.TopicIF
EVENT_ADD_OCCURRENCE, EVENT_ADD_SUBJECTIDENTIFIER, EVENT_ADD_SUBJECTLOCATOR, EVENT_ADD_TOPICNAME, EVENT_ADD_TYPE, EVENT_ADDED, EVENT_MODIFIED, EVENT_REMOVE_OCCURRENCE, EVENT_REMOVE_SUBJECTIDENTIFIER, EVENT_REMOVE_SUBJECTLOCATOR, EVENT_REMOVE_TOPICNAME, EVENT_REMOVE_TYPE, EVENT_REMOVED

Constructor Summary

Constructors
Modifier Constructor Description

protected Topic(TopicMap tm)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected void`	`addOccurrence(OccurrenceIF _occurrence)`
`protected void`	`addRole(AssociationRoleIF assoc_role)`	INTERNAL: Adds the association role to the set of association roles in which the topic participates.
`void`	`addSubjectIdentifier(LocatorIF subject_indicator)`	PUBLIC: Adds the given subject identifier to the set of subject identifiers for this topic.
`void`	`addSubjectLocator(LocatorIF subject_locator)`	PUBLIC: Adds the given subject locator to the set of subject locators for this topic.
`protected void`	`addTopicName(TopicNameIF _name)`
`void`	`addType(TopicIF type)`	PUBLIC: Adds a type to this topic.
`Collection<AssociationIF>`	`getAssociations()`	PUBLIC: Gets the associations that have roles played by this topic.
`Collection<AssociationIF>`	`getAssociationsByType(TopicIF type)`	PUBLIC: Gets the associations that have roles played by this topic, where the association is of specified type.
`Collection<OccurrenceIF>`	`getOccurrences()`	PUBLIC: Gets the occurrences of this topic.
`Collection<OccurrenceIF>`	`getOccurrencesByType(TopicIF type)`	PUBLIC: Gets the occurrences of this topic with a specified type.
`ReifiableIF`	`getReified()`	PUBLIC: Returns the topic map object that this topic reifies.
`Collection<AssociationRoleIF>`	`getRoles()`	PUBLIC: Gets the association roles played by this topic.
`Collection<AssociationRoleIF>`	`getRolesByType(TopicIF roletype)`	PUBLIC: Gets the association roles of the specifed type played by this topic.
`Collection<AssociationRoleIF>`	`getRolesByType(TopicIF roletype, TopicIF assoc_type)`	PUBLIC: Gets the association roles of the specifed type played by this topic.
`Collection<LocatorIF>`	`getSubjectIdentifiers()`	PUBLIC: Gets the subject identitifers of this topic.
`Collection<LocatorIF>`	`getSubjectLocators()`	PUBLIC: Gets the subject locators of this topic.
`Collection<TopicNameIF>`	`getTopicNames()`	PUBLIC: Gets the names of this topic.
`Collection<TopicNameIF>`	`getTopicNamesByType(TopicIF type)`	PUBLIC: Gets the topic names of this topic with a specified type.
`Collection<TopicIF>`	`getTypes()`	PUBLIC: Gets the types that this topic is an instance of.
`void`	`merge(TopicIF topic)`	EXPERIMENTAL: Merges the characteristics of one topic into another topic.
`void`	`remove()`	PUBLIC: Removes the object from its parent.
`protected void`	`removeOccurrence(OccurrenceIF _occurrence)`
`protected void`	`removeRole(AssociationRoleIF assoc_role)`	INTERNAL: Removes the association role from the set of association roles in which the topic participates.
`void`	`removeSubjectIdentifier(LocatorIF subject_indicator)`	PUBLIC: Removes the given subject identifier from the set of subject identifiers for this topic.
`void`	`removeSubjectLocator(LocatorIF subject_locator)`	PUBLIC: Removes the given subject locator from the set of subject locators for this topic.
`protected void`	`removeTopicName(TopicNameIF _name)`
`void`	`removeType(TopicIF type)`	PUBLIC: Removes a type from this topic.
`protected void`	`setReified(ReifiableIF reified)`
`protected void`	`setTopicMap(TopicMap parent)`	INTERNAL: Sets the topic map that the object belongs to.
`String`	`toString()`

Methods inherited from class net.ontopia.topicmaps.impl.basic.TMObject
addItemIdentifier, fireEvent, getItemIdentifiers, getObjectId, getTopicMap, isConnected, isReadOnly, removeItemIdentifier

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface net.ontopia.topicmaps.core.TMObjectIF
addItemIdentifier, getItemIdentifiers, getObjectId, getTopicMap, isReadOnly, removeItemIdentifier

- Field Detail
  - subjects
```
protected Set<LocatorIF> subjects
```
  - indicators
```
protected Set<LocatorIF> indicators
```
  - reified
```
protected ReifiableIF reified
```
  - scope
```
protected UniqueSet<TopicIF> scope
```
  - types
```
protected UniqueSet<TopicIF> types
```
  - names
```
protected Set<TopicNameIF> names
```
  - occurs
```
protected Set<OccurrenceIF> occurs
```
  - roles
```
protected Set<AssociationRoleIF> roles
```
- Constructor Detail
  - Topic
```
protected Topic(TopicMap tm)
```
- Method Detail
  - setTopicMap
```
protected void setTopicMap(TopicMap parent)
```
    INTERNAL: Sets the topic map that the object belongs to. [parent]
  - getSubjectLocators
```
public Collection<LocatorIF> getSubjectLocators()
```
    Description copied from interface: TopicIF
    
    PUBLIC: Gets the subject locators of this topic. These are locators for resources that directly address the subject of this topic. Such a resource is also called an addressable subject. The subject locators are not guaranteed to have any specific order within the returned collection.
    
    Specified by:
    
    getSubjectLocators in interface TopicIF
    
    Returns:
    
    A collection of LocatorIF objects serving as subject locators.
  - addSubjectLocator
```
public void addSubjectLocator(LocatorIF subject_locator)
                       throws ConstraintViolationException
```
    Description copied from interface: TopicIF
    
    PUBLIC: Adds the given subject locator to the set of subject locators for this topic.
    
    Specified by:
    
    addSubjectLocator in interface TopicIF
    
    Parameters:
    
    subject_locator - A locator for the subject locator to be added; an object implementing LocatorIF.
    
    Throws:
    
    ConstraintViolationException - Thrown if the topic map already has a topic with this subject locator.
  - removeSubjectLocator
```
public void removeSubjectLocator(LocatorIF subject_locator)
```
    Description copied from interface: TopicIF
    
    PUBLIC: Removes the given subject locator from the set of subject locators for this topic. If the topic does not have the given subject locator then this method has no effect.
    
    Specified by:
    
    removeSubjectLocator in interface TopicIF
    
    Parameters:
    
    subject_locator - A locator for the subject locator to be removed; an object implementing LocatorIF.
  - getSubjectIdentifiers
```
public Collection<LocatorIF> getSubjectIdentifiers()
```
    Description copied from interface: TopicIF
    
    PUBLIC: Gets the subject identitifers of this topic. These are locators for resources that indirectly address or otherwise indicate the subject of this topic. A subject identifier is intended as a surrogate for a subject which cannot be addressed directly. The subject identifiers are not guaranteed to have any specific order within the returned collection.
    
    Specified by:
    
    getSubjectIdentifiers in interface TopicIF
    
    Returns:
    
    A collection of LocatorIF objects serving as subject identifiers.
  - addSubjectIdentifier
```
public void addSubjectIdentifier(LocatorIF subject_indicator)
                          throws ConstraintViolationException
```
    Description copied from interface: TopicIF
    
    PUBLIC: Adds the given subject identifier to the set of subject identifiers for this topic.
    
    Specified by:
    
    addSubjectIdentifier in interface TopicIF
    
    Parameters:
    
    subject_indicator - A locator for the subject identifier to be added; an object implementing LocatorIF.
    
    Throws:
    
    ConstraintViolationException - Thrown if the topic map already has a topic with this addressable subject.
  - removeSubjectIdentifier
```
public void removeSubjectIdentifier(LocatorIF subject_indicator)
```
    Description copied from interface: TopicIF
    
    PUBLIC: Removes the given subject identifier from the set of subject identifiers for this topic. If the topic does not have the given subject identifier then this method has no effect.
    
    Specified by:
    
    removeSubjectIdentifier in interface TopicIF
    
    Parameters:
    
    subject_indicator - A locator for the subject identifier to be removed; an object implementing LocatorIF.
  - getTopicNames
```
public Collection<TopicNameIF> getTopicNames()
```
    Description copied from interface: TopicIF
    
    PUBLIC: Gets the names of this topic.
    
    Specified by:
    
    getTopicNames in interface TopicIF
    
    Returns:
    
    A collection of TopicNameIF objects.
  - addTopicName
```
protected void addTopicName(TopicNameIF _name)
```
  - removeTopicName
```
protected void removeTopicName(TopicNameIF _name)
```
  - getTopicNamesByType
```
public Collection<TopicNameIF> getTopicNamesByType(TopicIF type)
```
    Description copied from interface: TopicIF
    
    PUBLIC: Gets the topic names of this topic with a specified type.
    
    Specified by:
    
    getTopicNamesByType in interface TopicIF
    
    Returns:
    
    A collection of TopicNameIF objects typed by specified type.
  - getOccurrences
```
public Collection<OccurrenceIF> getOccurrences()
```
    Description copied from interface: TopicIF
    
    PUBLIC: Gets the occurrences of this topic. The occurrences are not guaranteed to have any specific order.
    
    Specified by:
    
    getOccurrences in interface TopicIF
    
    Returns:
    
    A collection of OccurrenceIF objects.
  - getOccurrencesByType
```
public Collection<OccurrenceIF> getOccurrencesByType(TopicIF type)
```
    Description copied from interface: TopicIF
    
    PUBLIC: Gets the occurrences of this topic with a specified type. The occurrences are not guaranteed to have any specific order.
    
    Specified by:
    
    getOccurrencesByType in interface TopicIF
    
    Returns:
    
    A collection of OccurrenceIF objects typed by specified type.
  - addOccurrence
```
protected void addOccurrence(OccurrenceIF _occurrence)
```
  - removeOccurrence
```
protected void removeOccurrence(OccurrenceIF _occurrence)
```
  - getRoles
```
public Collection<AssociationRoleIF> getRoles()
```
    Description copied from interface: TopicIF
    
    PUBLIC: Gets the association roles played by this topic. There is no guarantee as to the order these are returned in.
    
    Specified by:
    
    getRoles in interface TopicIF
    
    Returns:
    
    A collection of AssociationRoleIF objects.
  - getRolesByType
```
public Collection<AssociationRoleIF> getRolesByType(TopicIF roletype)
```
    Description copied from interface: TopicIF
    
    PUBLIC: Gets the association roles of the specifed type played by this topic. There is no guarantee as to the order these are returned in.
    
    Specified by:
    
    getRolesByType in interface TopicIF
    
    Returns:
    
    A collection of AssociationRoleIF objects.
  - getRolesByType
```
public Collection<AssociationRoleIF> getRolesByType(TopicIF roletype,
                                                    TopicIF assoc_type)
```
    Description copied from interface: TopicIF
    
    PUBLIC: Gets the association roles of the specifed type played by this topic. The association roles must be part of an association of the specified type. There is no guarantee as to the order these are returned in.
    
    Specified by:
    
    getRolesByType in interface TopicIF
    
    Returns:
    
    A collection of AssociationRoleIF objects.
  - getAssociations
```
public Collection<AssociationIF> getAssociations()
```
    Description copied from interface: TopicIF
    
    PUBLIC: Gets the associations that have roles played by this topic. There is no guarantee as to the order these are returned in.
    
    Specified by:
    
    getAssociations in interface TopicIF
    
    Returns:
    
    A collection of AssociationIF objects.
  - getAssociationsByType
```
public Collection<AssociationIF> getAssociationsByType(TopicIF type)
```
    Description copied from interface: TopicIF
    
    PUBLIC: Gets the associations that have roles played by this topic, where the association is of specified type. There is no guarantee as to the order these are returned in.
    
    Specified by:
    
    getAssociationsByType in interface TopicIF
    
    Returns:
    
    A collection of AssociationIF objects.
  - merge
```
public void merge(TopicIF topic)
```
    Description copied from interface: TopicIF
    
    EXPERIMENTAL: Merges the characteristics of one topic into another topic. The source topic stripped of characteristics, all of which are moved to the target topic. Duplicate characteristics are suppressed. The topics must be in the same topic map, and the source topic is removed from the topic map.
    
    Specified by:
    
    merge in interface TopicIF
    
    Parameters:
    
    topic - topicIF; the source topic. This is empty after the operation and is removed from the topic map.
  - addRole
```
protected void addRole(AssociationRoleIF assoc_role)
```
    INTERNAL: Adds the association role to the set of association roles in which the topic participates.
  - removeRole
```
protected void removeRole(AssociationRoleIF assoc_role)
```
    INTERNAL: Removes the association role from the set of association roles in which the topic participates.
  - remove
```
public void remove()
```
    Description copied from interface: TMObjectIF
    
    PUBLIC: Removes the object from its parent.
    
    Specified by:
    
    remove in interface TMObjectIF
  - getTypes
```
public Collection<TopicIF> getTypes()
```
    Description copied from interface: TopicIF
    
    PUBLIC: Gets the types that this topic is an instance of. There is no guarantee as to which order these will be returned in.
    
    Specified by:
    
    getTypes in interface TopicIF
    
    Returns:
    
    A collection of TopicIF objects.
  - addType
```
public void addType(TopicIF type)
```
    Description copied from interface: TopicIF
    
    PUBLIC: Adds a type to this topic.
    
    Specified by:
    
    addType in interface TopicIF
    
    Parameters:
    
    type - The additional type; an object implementing TopicIF.
  - removeType
```
public void removeType(TopicIF type)
```
    Description copied from interface: TopicIF
    
    PUBLIC: Removes a type from this topic. If the given topic is not present amongst the types, then the method has no effect.
    
    Specified by:
    
    removeType in interface TopicIF
    
    Parameters:
    
    type - The type to be removed; an object implementing TopicIF.
  - getReified
```
public ReifiableIF getReified()
```
    Description copied from interface: TopicIF
    
    PUBLIC: Returns the topic map object that this topic reifies.
    
    Specified by:
    
    getReified in interface TopicIF
  - setReified
```
protected void setReified(ReifiableIF reified)
```
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object

Class Topic

Field Summary

Fields inherited from class net.ontopia.topicmaps.impl.basic.TMObject

Fields inherited from interface net.ontopia.topicmaps.core.TMObjectIF

Fields inherited from interface net.ontopia.topicmaps.core.TopicIF

Constructor Summary

Method Summary

Methods inherited from class net.ontopia.topicmaps.impl.basic.TMObject

Methods inherited from class java.lang.Object

Methods inherited from interface net.ontopia.topicmaps.core.TMObjectIF

Field Detail

subjects

indicators

reified

scope

types

names

occurs

roles

Constructor Detail

Topic

Method Detail

setTopicMap

getSubjectLocators

addSubjectLocator

removeSubjectLocator

getSubjectIdentifiers

addSubjectIdentifier

removeSubjectIdentifier

getTopicNames

addTopicName

removeTopicName

getTopicNamesByType

getOccurrences

getOccurrencesByType

addOccurrence

removeOccurrence

getRoles

getRolesByType

getRolesByType

getAssociations

getAssociationsByType

merge

addRole

removeRole

remove

getTypes

addType

removeType

getReified

setReified

toString