org.apache.lucene.analysis

Class CharArraySet

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractSet

org.apache.lucene.analysis.CharArraySet

All Implemented Interfaces:

java.lang.Iterable, java.util.Collection, java.util.Set

public class CharArraySet
extends java.util.AbstractSet

A simple class that stores Strings as char[]'s in a hash table. Note that this is not a general purpose class. For example, it cannot remove items from the set, nor does it resize its hash table to be smaller, etc. It is designed to be quick to test if a char[] is in the set without the necessity of converting it to a String first.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	CharArraySet.CharArraySetIterator The Iterator for this set.

Constructor Summary

Constructors

Constructor and Description
CharArraySet(java.util.Collection c, boolean ignoreCase) Create set from a Collection of char[] or String
CharArraySet(int startSize, boolean ignoreCase) Create set with enough capacity to hold startSize terms

Method Summary

Modifier and Type	Method and Description
boolean	add(char[] text) Add this char[] directly to the set.
boolean	add(java.lang.CharSequence text) Add this CharSequence into the set
boolean	add(java.lang.Object o)
boolean	add(java.lang.String text) Add this String into the set
boolean	contains(char[] text, int off, int len) true if the len chars of text starting at off are in the set
boolean	contains(java.lang.CharSequence cs) true if the CharSequence is in the set
boolean	contains(java.lang.Object o)
boolean	isEmpty()
java.util.Iterator	iterator()
int	size()

Methods inherited from class java.util.AbstractSet

equals, hashCode, removeAll

Methods inherited from class java.util.AbstractCollection

addAll, clear, containsAll, remove, retainAll, toArray, toArray, toString

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Set

addAll, clear, containsAll, remove, retainAll, spliterator, toArray, toArray

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream

Methods inherited from interface java.lang.Iterable

forEach

Constructor Detail

CharArraySet

public CharArraySet(int startSize,
                    boolean ignoreCase)

Create set with enough capacity to hold startSize terms

CharArraySet

public CharArraySet(java.util.Collection c,
                    boolean ignoreCase)

Create set from a Collection of char[] or String

Method Detail

contains

public boolean contains(char[] text,
                        int off,
                        int len)

true if the len chars of text starting at off are in the set

contains

public boolean contains(java.lang.CharSequence cs)

true if the CharSequence is in the set

add

public boolean add(java.lang.CharSequence text)

Add this CharSequence into the set

add

public boolean add(java.lang.String text)

Add this String into the set

add

public boolean add(char[] text)

Add this char[] directly to the set. If ignoreCase is true for this Set, the text array will be directly modified. The user should never modify this text array after calling this method.

size

public int size()

Specified by:

size in interface java.util.Collection

Specified by:

size in interface java.util.Set

Specified by:

size in class java.util.AbstractCollection

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface java.util.Collection

Specified by:

isEmpty in interface java.util.Set

Overrides:

isEmpty in class java.util.AbstractCollection

contains

public boolean contains(java.lang.Object o)

Specified by:

contains in interface java.util.Collection

Specified by:

contains in interface java.util.Set

Overrides:

contains in class java.util.AbstractCollection

add

public boolean add(java.lang.Object o)

Specified by:

add in interface java.util.Collection

Specified by:

add in interface java.util.Set

Overrides:

add in class java.util.AbstractCollection

iterator

public java.util.Iterator iterator()

Specified by:

iterator in interface java.lang.Iterable

Specified by:

iterator in interface java.util.Collection

Specified by:

iterator in interface java.util.Set

Specified by:

iterator in class java.util.AbstractCollection