本文整理汇总了C#中Lucene.Net.Index.IndexWriter.deleteDocuments方法的典型用法代码示例。如果您正苦于以下问题：C# Lucene.Net.Index.IndexWriter.deleteDocuments方法的具体用法？C# Lucene.Net.Index.IndexWriter.deleteDocuments怎么用？C# Lucene.Net.Index.IndexWriter.deleteDocuments使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Lucene.Net.Index.IndexWriter的用法示例。
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示例1: TestPerFieldCodec
// tests storing "id" and "field2" fields as pulsing codec,
// whose term sort is backwards unicode code point, and
// storing "field1" as a custom entirely-in-RAM codec
public virtual void TestPerFieldCodec()
{
int NUM_DOCS = atLeast(173);
if (VERBOSE)
{
Console.WriteLine("TEST: NUM_DOCS=" + NUM_DOCS);
}
BaseDirectoryWrapper dir = newDirectory();
dir.CheckIndexOnClose = false; // we use a custom codec provider
IndexWriter w = new IndexWriter(dir, newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())).setCodec(new CustomPerFieldCodec()).setMergePolicy(newLogMergePolicy(3)));
Document doc = new Document();
// uses default codec:
doc.Add(newTextField("field1", "this field uses the standard codec as the test", Field.Store.NO));
// uses pulsing codec:
Field field2 = newTextField("field2", "this field uses the pulsing codec as the test", Field.Store.NO);
doc.Add(field2);
Field idField = newStringField("id", "", Field.Store.NO);
doc.Add(idField);
for (int i = 0;i < NUM_DOCS;i++)
{
idField.StringValue = "" + i;
w.addDocument(doc);
if ((i + 1) % 10 == 0)
{
w.commit();
}
}
if (VERBOSE)
{
Console.WriteLine("TEST: now delete id=77");
}
w.deleteDocuments(new Term("id", "77"));
IndexReader r = DirectoryReader.Open(w, true);
Assert.AreEqual(NUM_DOCS - 1, r.NumDocs());
IndexSearcher s = newSearcher(r);
Assert.AreEqual(NUM_DOCS - 1, s.Search(new TermQuery(new Term("field1", "standard")), 1).TotalHits);
Assert.AreEqual(NUM_DOCS - 1, s.Search(new TermQuery(new Term("field2", "pulsing")), 1).TotalHits);
r.Close();
if (VERBOSE)
{
Console.WriteLine("\nTEST: now delete 2nd doc");
}
w.deleteDocuments(new Term("id", "44"));
if (VERBOSE)
{
Console.WriteLine("\nTEST: now force merge");
}
w.forceMerge(1);
if (VERBOSE)
{
Console.WriteLine("\nTEST: now open reader");
}
r = DirectoryReader.Open(w, true);
Assert.AreEqual(NUM_DOCS - 2, r.MaxDoc());
Assert.AreEqual(NUM_DOCS - 2, r.NumDocs());
s = newSearcher(r);
Assert.AreEqual(NUM_DOCS - 2, s.Search(new TermQuery(new Term("field1", "standard")), 1).TotalHits);
Assert.AreEqual(NUM_DOCS - 2, s.Search(new TermQuery(new Term("field2", "pulsing")), 1).TotalHits);
Assert.AreEqual(1, s.Search(new TermQuery(new Term("id", "76")), 1).TotalHits);
Assert.AreEqual(0, s.Search(new TermQuery(new Term("id", "77")), 1).TotalHits);
Assert.AreEqual(0, s.Search(new TermQuery(new Term("id", "44")), 1).TotalHits);
if (VERBOSE)
{
Console.WriteLine("\nTEST: now close NRT reader");
}
r.Close();
w.Dispose();
dir.Dispose();
}