Swing Hacks

Search Through JTables Easily #26

Chapter 3, Tables and Trees

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135

HACK

public int getRowCount( ) {

return (tableModel == null) ? 0 : rowToModelIndex.size( );

}

public boolean isCellEditable(int row, int column) {

return tableModel.isCellEditable(getModelRow(row), column);

}

public Object getValueAt(int row, int column) {

return tableModel.getValueAt(getModelRow(row), column);

}

public void setValueAt(Object aValue, int row, int column) {

tableModel.setValueAt(aValue, getModelRow(row), column);

}

Indexing

Lucene is a document indexing and searching tool, available from http://

lucene.apache.org/. To incorporate it into a Java application, you simply need

to put its JAR file, typically named something like lucene-

version.jar, into

your classpath. For this hack, you’ll need the following

import statements:

import org.apache.lucene.store.*;

import org.apache.lucene.document.*;

import org.apache.lucene.analysis.*;

import org.apache.lucene.index.*;

import org.apache.lucene.search.*;

import org.apache.lucene.queryParser.*;

Most developers use Lucene with documents, but you can fake it to index a

table model instead. First, you need to create a Lucene index, where all of

the internal Lucene links are stored. You should use a

RAMDirectory rather

than a file-based directory in order to keep everything portable. You’ll also

need an

Analyzer that helps communicate between data and the index, as

well as an

IndexWriter