FileDocCategorySizeDatePackage
TermsFilter.javaAPI DocApache Lucene 2.2.02844Sat Jun 16 22:21:10 BST 2007org.apache.lucene.search

TermsFilter

public class TermsFilter extends Filter
Constructs a filter for docs matching any of the terms added to this class. Unlike a RangeFilter this can be used for filtering on multiple terms that are not necessarily in a sequence. An example might be a collection of primary keys from a database query result or perhaps a choice of "category" labels picked by the end user. As a filter, this is much faster than the equivalent query (a BooleanQuery with many "should" TermQueries)
author
maharwood

Fields Summary
ArrayList
termsList
Constructors Summary
Methods Summary
public voidaddTerm(org.apache.lucene.index.Term term)
Adds a term to the list of acceptable terms

param
term

	
	              	 
	   
	
		termsList.add(term);
public java.util.BitSetbits(org.apache.lucene.index.IndexReader reader)

		BitSet result=new BitSet(reader.maxDoc());
		for (Iterator iter = termsList.iterator(); iter.hasNext();)
		{
			Term term = (Term) iter.next();
			TermDocs td=reader.termDocs(term);
	        while (td.next())
	        {
	            result.set(td.doc());
	        }						
		}
		return result;
public booleanequals(java.lang.Object obj)

		if(this == obj)
			return true;
		if((obj == null) || (obj.getClass() != this.getClass()))
				return false;
		TermsFilter test = (TermsFilter)obj;
		return (termsList == test.termsList|| 
					 (termsList!= null && termsList.equals(test.termsList)));
public inthashCode()

		int hash=9;
		for (Iterator iter = termsList.iterator(); iter.hasNext();)
		{
			Term term = (Term) iter.next();
			hash = 31 * hash + term.hashCode();			
		}
		return hash;