i3.dragos.gm.core.schema
Class Cardinality

java.lang.Object
  i3.dragos.gm.core.schema.Cardinality

All Implemented Interfaces:

java.io.Serializable

public class Cardinality
extends java.lang.Object
implements java.io.Serializable

The cardinality of edge types, attributes etc.

Author:

Boris Boehlen <boehlen@cs.rwth-aachen.de>, Thorsten Hermes <thermes@i3.informatik.rwth-aachen.de>

See Also:

Serialized Form

Field Summary

static Cardinality	OBL_SET Set contains [1:n] elements.
static Cardinality	OBL_UNIQUE Set contains [1:1] elements.
static Cardinality	OPT_SET Set contains [0:n] elements.
static Cardinality	OPT_UNIQUE Set contains [0:1] elements.

Constructor Summary

Cardinality(int min, int max)
Creates a new Cardinality instance.

Method Summary

boolean	applys(int value) Determines whether value is in the interval of this Cardinality.
boolean	equals(java.lang.Object o)
int	getMaximum() Returns the mininum for this Cardinality.
int	getMinimum() Returns the maxinum for this Cardinality.
int	hashCode()
java.lang.String	toString() Returns a String representation of this Cardinality.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

OPT_UNIQUE

public static final Cardinality OPT_UNIQUE

Set contains [0:1] elements.

OBL_UNIQUE

public static final Cardinality OBL_UNIQUE

Set contains [1:1] elements.

OPT_SET

public static final Cardinality OPT_SET

Set contains [0:n] elements.

OBL_SET

public static final Cardinality OBL_SET

Set contains [1:n] elements.

Constructor Detail

Cardinality

public Cardinality(int min,
                   int max)

Creates a new Cardinality instance.

Parameters:

min - The mininum for this Cardinality.

max - The maxinum for this Cardinality.

Method Detail

getMinimum

public int getMinimum()

Returns the maxinum for this Cardinality.

Returns:

The maxinum for this Cardinality

getMaximum

public int getMaximum()

Returns the mininum for this Cardinality.

Returns:

The mininum for this Cardinality

applys

public boolean applys(int value)

Determines whether value is in the interval of this Cardinality.

Parameters:

value - the value to check.

Returns:

true if the given value is contained in this interval, false otherwise.

toString

public java.lang.String toString()

Returns a String representation of this Cardinality.

Overrides:

toString in class java.lang.Object

Returns:

a String representation of this Cardinality.

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object