本文整理汇总了C#中Lucene.Net.Index.IndexReader.DeleteDocument方法的典型用法代码示例。如果您正苦于以下问题：C# IndexReader.DeleteDocument方法的具体用法？C# IndexReader.DeleteDocument怎么用？C# IndexReader.DeleteDocument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.IndexReader的用法示例。
在下文中一共展示了IndexReader.DeleteDocument方法的7个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: PerformDefaultTests
/// <summary> 1. Get a norm from the original reader 2. Clone the original reader 3.
/// Delete a document and set the norm of the cloned reader 4. Verify the norms
/// are not the same on each reader 5. Verify the doc deleted is only in the
/// cloned reader 6. Try to delete a document in the original reader, an
/// exception should be thrown
///
/// </summary>
/// <param name="r1">IndexReader to perform tests on
/// </param>
/// <throws> Exception </throws>
private void PerformDefaultTests(IndexReader r1)
{
float norm1 = Similarity.DecodeNorm(r1.Norms("field1")[4]);
IndexReader pr1Clone = (IndexReader) r1.Clone();
pr1Clone.DeleteDocument(10);
pr1Clone.SetNorm(4, "field1", 0.5f);
Assert.IsTrue(Similarity.DecodeNorm(r1.Norms("field1")[4]) == norm1);
Assert.IsTrue(Similarity.DecodeNorm(pr1Clone.Norms("field1")[4]) != norm1);
Assert.IsTrue(!r1.IsDeleted(10));
Assert.IsTrue(pr1Clone.IsDeleted(10));
// try to update the original reader, which should throw an exception
Assert.Throws<LockObtainFailedException>(() => r1.DeleteDocument(11),
"Tried to delete doc 11 and an exception should have been thrown");
pr1Clone.Close();
}示例2: ApplyDeletes
// Apply buffered delete terms, queries and docIDs to the
// provided reader
private bool ApplyDeletes(IndexReader reader, int docIDStart)
{
lock (this)
{
int docEnd = docIDStart + reader.MaxDoc();
bool any = false;
System.Diagnostics.Debug.Assert(CheckDeleteTerm(null));
// Delete by term
//System.Collections.IEnumerator iter = new System.Collections.Hashtable(deletesFlushed.terms).GetEnumerator();
System.Collections.IEnumerator iter = deletesFlushed.terms.GetEnumerator();
TermDocs docs = reader.TermDocs();
try
{
while (iter.MoveNext())
{
System.Collections.DictionaryEntry entry = (System.Collections.DictionaryEntry) iter.Current;
Term term = (Term) entry.Key;
// LUCENE-2086: we should be iterating a TreeMap,
// here, so terms better be in order:
System.Diagnostics.Debug.Assert(CheckDeleteTerm(term));
docs.Seek(term);
int limit = ((BufferedDeletes.Num) entry.Value).GetNum();
while (docs.Next())
{
int docID = docs.Doc();
if (docIDStart + docID >= limit)
break;
reader.DeleteDocument(docID);
any = true;
}
}
}
finally
{
docs.Close();
}
// Delete by docID
iter = deletesFlushed.docIDs.GetEnumerator();
while (iter.MoveNext())
{
int docID = ((System.Int32) iter.Current);
if (docID >= docIDStart && docID < docEnd)
{
reader.DeleteDocument(docID - docIDStart);
any = true;
}
}
// Delete by query
IndexSearcher searcher = new IndexSearcher(reader);
iter = new System.Collections.Hashtable(deletesFlushed.queries).GetEnumerator();
while (iter.MoveNext())
{
System.Collections.DictionaryEntry entry = (System.Collections.DictionaryEntry) iter.Current;
Query query = (Query) entry.Key;
int limit = ((System.Int32) entry.Value);
Weight weight = query.Weight(searcher);
Scorer scorer = weight.Scorer(reader, true, false);
if (scorer != null)
{
while (true)
{
int doc = scorer.NextDoc();
if (((long) docIDStart) + doc >= limit)
break;
reader.DeleteDocument(doc);
any = true;
}
}
}
searcher.Close();
return any;
}
}示例3: DeleteWorked
private static bool DeleteWorked(int doc, IndexReader r)
{
bool exception = false;
try
{
// trying to delete from the original reader should throw an exception
r.DeleteDocument(doc);
}
catch (System.Exception ex)
{
exception = true;
}
return !exception;
}示例4: ApplyDeletes
// Apply buffered delete terms, queries and docIDs to the
// provided reader
private bool ApplyDeletes(IndexReader reader, int docIDStart)
{
lock (this)
{
int docEnd = docIDStart + reader.MaxDoc();
bool any = false;
// Delete by term
IEnumerator<KeyValuePair<object, object>> iter = deletesFlushed.terms.GetEnumerator();
while (iter.MoveNext())
{
KeyValuePair<object, object> entry = (KeyValuePair<object, object>)iter.Current;
Term term = (Term)entry.Key;
TermDocs docs = reader.TermDocs(term);
if (docs != null)
{
int limit = ((BufferedDeletes.Num)entry.Value).GetNum();
try
{
while (docs.Next())
{
int docID = docs.Doc();
if (docIDStart + docID >= limit)
break;
reader.DeleteDocument(docID);
any = true;
}
}
finally
{
docs.Close();
}
}
}
// Delete by docID
IEnumerator<object> iter2 = deletesFlushed.docIDs.GetEnumerator();
while (iter2.MoveNext())
{
int docID = (int)iter2.Current;
if (docID >= docIDStart && docID < docEnd)
{
reader.DeleteDocument(docID - docIDStart);
any = true;
}
}
// Delete by query
IndexSearcher searcher = new IndexSearcher(reader);
iter = deletesFlushed.queries.GetEnumerator();
while (iter.MoveNext())
{
KeyValuePair<object, object> entry = (KeyValuePair<object, object>)iter.Current;
Query query = (Query)entry.Key;
int limit = (int)entry.Value;
Weight weight = query.Weight(searcher);
Scorer scorer = weight.Scorer(reader);
while (scorer.Next())
{
int docID = scorer.Doc();
if (docIDStart + docID >= limit)
break;
reader.DeleteDocument(docID);
any = true;
}
}
searcher.Close();
return any;
}
}示例5: ApplyDeletes
// Apply buffered delete terms, queries and docIDs to the
// provided reader
private bool ApplyDeletes(IndexReader reader, int docIDStart)
{
lock (this)
{
int docEnd = docIDStart + reader.MaxDoc();
bool any = false;
System.Diagnostics.Debug.Assert(CheckDeleteTerm(null));
// Delete by term
TermDocs docs = reader.TermDocs();
try
{
foreach(KeyValuePair<Term,BufferedDeletes.Num> entry in deletesFlushed.terms)
{
Term term = entry.Key;
// LUCENE-2086: we should be iterating a TreeMap,
// here, so terms better be in order:
System.Diagnostics.Debug.Assert(CheckDeleteTerm(term));
docs.Seek(term);
int limit = entry.Value.GetNum();
while (docs.Next())
{
int docID = docs.Doc();
if (docIDStart + docID >= limit)
break;
reader.DeleteDocument(docID);
any = true;
}
}
}
finally
{
docs.Close();
}
// Delete by docID
foreach(int docID in deletesFlushed.docIDs)
{
if (docID >= docIDStart && docID < docEnd)
{
reader.DeleteDocument(docID - docIDStart);
any = true;
}
}
// Delete by query
IndexSearcher searcher = new IndexSearcher(reader);
foreach(KeyValuePair<Query,int> entry in new Support.Dictionary<Query,int>(deletesFlushed.queries))
{
Query query = entry.Key;
int limit = entry.Value;
Weight weight = query.Weight(searcher);
Scorer scorer = weight.Scorer(reader, true, false);
if (scorer != null)
{
while (true)
{
int doc = scorer.NextDoc();
if (((long) docIDStart) + doc >= limit)
break;
reader.DeleteDocument(doc);
any = true;
}
}
}
searcher.Close();
return any;
}
}示例6: ApplyDeletesSelectively
// Apply buffered delete terms to the segment just flushed from ram
// apply appropriately so that a delete term is only applied to
// the documents buffered before it, not those buffered after it.
private void ApplyDeletesSelectively(System.Collections.Hashtable deleteTerms, System.Collections.IList deleteIds, IndexReader reader)
{
System.Collections.IEnumerator iter = new System.Collections.Hashtable(deleteTerms).GetEnumerator();
while (iter.MoveNext())
{
System.Collections.DictionaryEntry entry = (System.Collections.DictionaryEntry) iter.Current;
Term term = (Term) entry.Key;
TermDocs docs = reader.TermDocs(term);
if (docs != null)
{
int num = ((DocumentsWriter.Num) entry.Value).GetNum();
try
{
while (docs.Next())
{
int doc = docs.Doc();
if (doc >= num)
{
break;
}
reader.DeleteDocument(doc);
}
}
finally
{
docs.Close();
}
}
}
if (deleteIds.Count > 0)
{
iter = deleteIds.GetEnumerator();
while (iter.MoveNext())
{
reader.DeleteDocument(((System.Int32) iter.Current));
}
}
}示例7: PerformDefaultTests
/// <summary> 1. Get a norm from the original reader 2. Clone the original reader 3.
/// Delete a document and set the norm of the cloned reader 4. Verify the norms
/// are not the same on each reader 5. Verify the doc deleted is only in the
/// cloned reader 6. Try to delete a document in the original reader, an
/// exception should be thrown
///
/// </summary>
/// <param name="r1">IndexReader to perform tests on
/// </param>
/// <throws> Exception </throws>
private void PerformDefaultTests(IndexReader r1)
{
float norm1 = Similarity.DecodeNorm(r1.Norms("field1")[4]);
IndexReader pr1Clone = (IndexReader) r1.Clone();
pr1Clone.DeleteDocument(10);
pr1Clone.SetNorm(4, "field1", 0.5f);
Assert.IsTrue(Similarity.DecodeNorm(r1.Norms("field1")[4]) == norm1);
Assert.IsTrue(Similarity.DecodeNorm(pr1Clone.Norms("field1")[4]) != norm1);
Assert.IsTrue(!r1.IsDeleted(10));
Assert.IsTrue(pr1Clone.IsDeleted(10));
// try to update the original reader, which should throw an exception
try
{
r1.DeleteDocument(11);
Assert.Fail("Tried to delete doc 11 and an exception should have been thrown");
}
catch (System.Exception exception)
{
// expectted
}
pr1Clone.Close();
}