org.apache.xerces.impl.dtd.models

## Class CMStateSet

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

  # INTERNAL:

    Usage of this class is not supported. It may be altered or removed at any time.

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `CMStateSet(int bitCount)`

  - ### Method Summary

    Methods
    Modifier and Type | Method and 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`

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