org.owasp.dependencycheck.data.lucene

Class AlphaNumericFilter

java.lang.Object

org.apache.lucene.util.AttributeSource

org.apache.lucene.analysis.TokenStream

org.apache.lucene.analysis.TokenFilter

org.owasp.dependencycheck.data.lucene.AbstractTokenizingFilter

org.owasp.dependencycheck.data.lucene.AlphaNumericFilter

All Implemented Interfaces:

Closeable, AutoCloseable

public final class AlphaNumericFilter
extends AbstractTokenizingFilter

A simple alphanumeric filter that removes non-alphanumeric characters from the terms. If a term contains a non-alphanumeric character it may be split into multiple terms:

term	results in
bob	bob
bob-cat	bob cat
#$%	[skipped]

Author:

jeremy long

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.lucene.util.AttributeSource

org.apache.lucene.util.AttributeSource.State

Field Summary

Fields inherited from class org.apache.lucene.analysis.TokenFilter

input

Fields inherited from class org.apache.lucene.analysis.TokenStream

DEFAULT_TOKEN_ATTRIBUTE_FACTORY

Constructor Summary

Constructors

Constructor and Description
AlphaNumericFilter(org.apache.lucene.analysis.TokenStream stream) Constructs a new AlphaNumericFilter.

Method Summary

Modifier and Type	Method and Description
void	end()
boolean	equals(Object obj)
int	hashCode()
boolean	incrementToken()
void	reset()

Methods inherited from class org.owasp.dependencycheck.data.lucene.AbstractTokenizingFilter

addTerm, getTermAtt, getTokens

Methods inherited from class org.apache.lucene.analysis.TokenFilter

close

Methods inherited from class org.apache.lucene.util.AttributeSource

addAttribute, addAttributeImpl, captureState, clearAttributes, cloneAttributes, copyTo, endAttributes, getAttribute, getAttributeClassesIterator, getAttributeFactory, getAttributeImplsIterator, hasAttribute, hasAttributes, reflectAsString, reflectWith, removeAllAttributes, restoreState, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

AlphaNumericFilter

public AlphaNumericFilter(org.apache.lucene.analysis.TokenStream stream)

Constructs a new AlphaNumericFilter.

Parameters:

stream - the TokenStream that this filter will process

Method Detail

incrementToken

public boolean incrementToken()
                       throws IOException

Specified by:

incrementToken in class org.apache.lucene.analysis.TokenStream

Throws:

IOException

reset

public void reset()
           throws IOException

Overrides:

reset in class AbstractTokenizingFilter

Throws:

IOException

end

public void end()
         throws IOException

Overrides:

end in class org.apache.lucene.analysis.TokenFilter

Throws:

IOException

hashCode

public int hashCode()

Overrides:

hashCode in class org.apache.lucene.util.AttributeSource

equals

public boolean equals(Object obj)

Overrides:

equals in class org.apache.lucene.util.AttributeSource