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TestCachingWrapperFilter.javaAPI DocApache Lucene 2.1.01813Wed Feb 14 10:46:36 GMT 2007org.apache.lucene.search

TestCachingWrapperFilter

public class TestCachingWrapperFilter extends TestCase
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public voidtestCachingWorks()

    Directory dir = new RAMDirectory();
    IndexWriter writer = new IndexWriter(dir, new StandardAnalyzer(), true);
    writer.close();

    IndexReader reader = IndexReader.open(dir);

    MockFilter filter = new MockFilter();
    CachingWrapperFilter cacher = new CachingWrapperFilter(filter);

    // first time, nested filter is called
    cacher.bits(reader);
    assertTrue("first time", filter.wasCalled());

    // second time, nested filter should not be called
    filter.clear();
    cacher.bits(reader);
    assertFalse("second time", filter.wasCalled());

    reader.close();