CMStateSet (Xerces2 Implementation)

java.lang.Object
- org.apache.xerces.impl.dtd.models.CMStateSet

```
public class CMStateSet
extends java.lang.Object
```
This class is a very simple bitset class. The DFA content model code needs to support a bit set, but the java BitSet class is way, way overkill. Our bitset never needs to be expanded after creation, hash itself, etc... Since the vast majority of content models will never require more than 64 bits, and since allocation of anything in Java is expensive, this class provides a hybrid implementation that uses two ints for instances that use 64 bits or fewer. It has a byte array reference member which will only be used if more than 64 bits are required. Note that the code that uses this class will never perform operations on sets of different sizes, so that check does not have to be made here.
INTERNAL:
Usage of this class is not supported. It may be altered or removed at any time.

Version:

$Id: CMStateSet.java 446752 2006-09-15 21:55:19Z mrglavas $

Constructor Summary

Constructors
Constructor Description

CMStateSet(int bitCount)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(java.lang.Object o)`
`boolean`	`getBit(int bitToGet)`
`int`	`hashCode()`
`void`	`intersection(CMStateSet setToAnd)`
`boolean`	`isEmpty()`
`void`	`setBit(int bitToSet)`
`void`	`setTo(CMStateSet srcSet)`
`java.lang.String`	`toString()`
`void`	`union(CMStateSet setToOr)`
`void`	`zeroBits()`

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

Constructor Detail
- CMStateSet
```
public CMStateSet(int bitCount)
```

Method Detail

toString
```
public java.lang.String toString()
```
Overrides:

toString in class java.lang.Object

intersection

public final void intersection(CMStateSet setToAnd)

getBit

public final boolean getBit(int bitToGet)

isEmpty
```
public final boolean isEmpty()
```

union

public final void union(CMStateSet setToOr)

setBit

public final void setBit(int bitToSet)

setTo

public final void setTo(CMStateSet srcSet)

zeroBits
```
public final void zeroBits()
```

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