Cardinality (Ontopia)

java.lang.Object
- ontopoly.model.Topic
- - ontopoly.model.Cardinality

```
public class Cardinality
extends Topic
```
Represents a cardinality that can be assigned to a field.

Constructor Summary

Constructors
Constructor Description

Cardinality(TopicIF topic, TopicMap tm)
Creates a new Cardinality object.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(Object obj)`
`static List<Cardinality>`	`getCardinalityTypes(TopicMap tm)`	Returns all available cardinalities.
`static Cardinality`	`getDefaultCardinality(FieldDefinition fieldDefinition)`	Returns the default cardinality (zero or more)
`LocatorIF`	`getLocator()`
`int`	`getMaxCardinality()`
`int`	`getMinCardinality()`
`boolean`	`isExactlyOne()`
`boolean`	`isMaxOne()`	True if cardinality is 0..1 or 1..1.
`boolean`	`isMinOne()`	True if cardinality is 1..* or 1..1.
`boolean`	`isOneOrMore()`
`boolean`	`isZeroOrMore()`
`boolean`	`isZeroOrOne()`

Methods inherited from class ontopoly.model.Topic
addTopicType, copyCharacteristics, findDependentObjects, getDependentObjects, getFieldInstances, getFieldInstances, getId, getMostSpecificTopicType, getName, getTopicIF, getTopicMap, getTopicTypes, hashCode, isAssociationType, isFieldDefinition, isInstanceOf, isInstanceOf, isNameType, isOccurrenceType, isOntologyTopic, isOntologyType, isPrivateSystemTopic, isPublicSystemTopic, isRoleType, isSystemTopic, isTopicMap, isTopicType, remove, removeTopicType, toString

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

Constructor Detail

Cardinality

public Cardinality(TopicIF topic,
                   TopicMap tm)

Creates a new Cardinality object.

Method Detail

equals
```
public boolean equals(Object obj)
```
Overrides:

equals in class Topic

getLocator
```
public LocatorIF getLocator()
```

isZeroOrOne
```
public boolean isZeroOrOne()
```

isExactlyOne
```
public boolean isExactlyOne()
```

isZeroOrMore
```
public boolean isZeroOrMore()
```

isOneOrMore
```
public boolean isOneOrMore()
```

isMaxOne
```
public boolean isMaxOne()
```
True if cardinality is 0..1 or 1..1.

isMinOne
```
public boolean isMinOne()
```
True if cardinality is 1..* or 1..1.

getDefaultCardinality

public static Cardinality getDefaultCardinality(FieldDefinition fieldDefinition)

Returns the default cardinality (zero or more)

getCardinalityTypes
```
public static List<Cardinality> getCardinalityTypes(TopicMap tm)
```
Returns all available cardinalities.

Returns:

A list containing Cardinality objects of all available cardinalities.

getMinCardinality
```
public int getMinCardinality()
```

getMaxCardinality
```
public int getMaxCardinality()
```