Package com.sun.tools.xjc.model

Class Multiplicity

java.lang.Object

com.sun.tools.xjc.model.Multiplicity

public final class Multiplicity
extends Object

represents a possible number of occurence. Usually, denoted by a pair of integers like (1,1) or (5,10). A special value "unbounded" is allowed as the upper bound.

For example, (0,unbounded) corresponds to the '*' occurence of DTD. (0,1) corresponds to the '?' occurence of DTD.

Author:

Kohsuke KAWAGUCHI

Field Summary

Fields

Modifier and Type	Field	Description
BigInteger	max
BigInteger	min
static Multiplicity	ONE	the constant representing the (1,1) multiplicity.
static Multiplicity	OPTIONAL	the constant representing the (0,1) multiplicity.
static Multiplicity	PLUS	the constant representing the (1,unbounded) multiplicity.
static Multiplicity	STAR	the constant representing the (0,unbounded) multiplicity.
static Multiplicity	ZERO	the constant representing the (0,0) multiplicity.

Method Summary

Modifier and Type	Method	Description
static Multiplicity	choice(Multiplicity lhs, Multiplicity rhs)
static Multiplicity	create(int min, Integer max)
static Multiplicity	create(BigInteger min, BigInteger max)
boolean	equals(Object o)
String	getMaxString()	Returns the string representation of the 'max' property.
static Multiplicity	group(Multiplicity lhs, Multiplicity rhs)
int	hashCode()
boolean	includes(Multiplicity rhs)	Returns true if the multiplicity represented by this object completely includes the multiplicity represented by the other object.
boolean	isAtMostOnce()	returns true if the multiplicity is (0,1) or (1,1).
boolean	isOptional()	returns true if the multiplicity is (0,1)
boolean	isUnique()	returns true if the multiplicity is (1,1).
boolean	isZero()	returns true if the multiplicity is (0,0).
Multiplicity	makeOptional()
Multiplicity	makeRepeated()
static Multiplicity	multiply(Multiplicity lhs, Multiplicity rhs)
static Multiplicity	oneOrMore(Multiplicity c)
String	toString()	gets the string representation.

Methods inherited from class java.lang.Object

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

Field Detail

min

public final BigInteger min

max

public final BigInteger max

ZERO

public static final Multiplicity ZERO

the constant representing the (0,0) multiplicity.

ONE

public static final Multiplicity ONE

the constant representing the (1,1) multiplicity.

OPTIONAL

public static final Multiplicity OPTIONAL

the constant representing the (0,1) multiplicity.

STAR

public static final Multiplicity STAR

the constant representing the (0,unbounded) multiplicity.

PLUS

public static final Multiplicity PLUS

the constant representing the (1,unbounded) multiplicity.

Method Detail

create

public static Multiplicity create(BigInteger min,
                                  BigInteger max)

create

public static Multiplicity create(int min,
                                  Integer max)

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

isUnique

public boolean isUnique()

returns true if the multiplicity is (1,1).

isOptional

public boolean isOptional()

returns true if the multiplicity is (0,1)

isAtMostOnce

public boolean isAtMostOnce()

returns true if the multiplicity is (0,1) or (1,1).

isZero

public boolean isZero()

returns true if the multiplicity is (0,0).

includes

public boolean includes(Multiplicity rhs)

Returns true if the multiplicity represented by this object completely includes the multiplicity represented by the other object. For example, we say [1,3] includes [1,2] but [2,4] doesn't include [1,3].

getMaxString

public String getMaxString()

Returns the string representation of the 'max' property. Either a number or a token "unbounded".

toString

public String toString()

gets the string representation. mainly debug purpose.

Overrides:

toString in class Object

choice

public static Multiplicity choice(Multiplicity lhs,
                                  Multiplicity rhs)

group

public static Multiplicity group(Multiplicity lhs,
                                 Multiplicity rhs)

multiply

public static Multiplicity multiply(Multiplicity lhs,
                                    Multiplicity rhs)

oneOrMore

public static Multiplicity oneOrMore(Multiplicity c)

makeOptional

public Multiplicity makeOptional()

makeRepeated

public Multiplicity makeRepeated()