java.lang.Object
- org.apache.lucene.index.TermEnum
- - org.apache.lucene.search.FilteredTermEnum
  - - org.apache.lucene.search.WildcardTermEnum

All Implemented Interfaces:

Closeable, AutoCloseable
```
public class WildcardTermEnum
extends FilteredTermEnum
```
Subclass of FilteredTermEnum for enumerating all terms that match the specified wildcard filter term.
Term enumerations are always ordered by Term.compareTo(). Each term in the enumeration is greater than all that precede it.

Field Summary

Fields
Modifier and Type Field Description

static char WILDCARD_CHAR

static char WILDCARD_STRING
String equality with support for wildcards
- Fields inherited from class org.apache.lucene.search.FilteredTermEnum
  actualEnum, currentTerm

Constructor Summary

Constructors
Constructor Description

WildcardTermEnum(IndexReader reader, Term term)
Creates a new WildcardTermEnum.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`float`	`difference()`	Equality measure on the term
`boolean`	`endEnum()`	Indicates the end of the enumeration has been reached
`protected boolean`	`termCompare(Term term)`	Equality compare on the term
`static boolean`	`wildcardEquals(String pattern, int patternIdx, String string, int stringIdx)`	Determines if a word matches a wildcard pattern.

Methods inherited from class org.apache.lucene.search.FilteredTermEnum
close, docFreq, next, setEnum, term

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

- Field Detail
  - WILDCARD_STRING
```
public static final char WILDCARD_STRING
```
    String equality with support for wildcards
    
    See Also:
    
    Constant Field Values
  - WILDCARD_CHAR
```
public static final char WILDCARD_CHAR
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - WildcardTermEnum
```
public WildcardTermEnum(IndexReader reader,
                        Term term)
                 throws IOException
```
    Creates a new WildcardTermEnum.
    After calling the constructor the enumeration is already pointing to the first valid term if such a term exists.
    
    Throws:
    
    IOException
- Method Detail
  - termCompare
```
protected final boolean termCompare(Term term)
```
    Description copied from class: FilteredTermEnum
    
    Equality compare on the term
    
    Specified by:
    
    termCompare in class FilteredTermEnum
  - difference
```
public float difference()
```
    Description copied from class: FilteredTermEnum
    
    Equality measure on the term
    
    Specified by:
    
    difference in class FilteredTermEnum
  - endEnum
```
public final boolean endEnum()
```
    Description copied from class: FilteredTermEnum
    
    Indicates the end of the enumeration has been reached
    
    Specified by:
    
    endEnum in class FilteredTermEnum
  - wildcardEquals
```
public static final boolean wildcardEquals(String pattern,
                                           int patternIdx,
                                           String string,
                                           int stringIdx)
```
    Determines if a word matches a wildcard pattern. Work released by Granta Design Ltd after originally being done on company time.

Modifier and Type	Field	Description
`static char`	`WILDCARD_CHAR`
`static char`	`WILDCARD_STRING`	String equality with support for wildcards

Class WildcardTermEnum

Field Summary

Fields inherited from class org.apache.lucene.search.FilteredTermEnum

Constructor Summary

Method Summary

Methods inherited from class org.apache.lucene.search.FilteredTermEnum

Methods inherited from class java.lang.Object

Field Detail

WILDCARD_STRING

WILDCARD_CHAR

Constructor Detail

WildcardTermEnum

Method Detail

termCompare

difference

endEnum

wildcardEquals