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  9. Merge

Merge

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Merge(Index, MergeOptions)

Merges the specified index into the current index. Note that the other index will not be changed.

public void Merge(Index index, MergeOptions options)
Parameter Type Description
index Index The index to merge into.
options MergeOptions The merge options.

Remarks

If the other index has a previous version, it must be updated before merging with IndexUpdater.

Examples

The example demonstrates how to merge an index into the current index.

string indexFolder1 = @"c:\MyIndex1\";
string indexFolder2 = @"c:\MyIndex2\";
string documentsFolder1 = @"c:\MyDocuments1\";
string documentsFolder2 = @"c:\MyDocuments2\";

Index index1 = new Index(indexFolder1); // Creating index1
index1.Add(documentsFolder1); // Indexing documents

Index index2 = new Index(indexFolder2); // Creating index2
index2.Add(documentsFolder2); // Indexing documents

MergeOptions options = new MergeOptions();
options.Cancellation = new Cancellation(); // Creating cancellation object

// Merging index2 into index1. Note that index2 files will not be changed.
index1.Merge(index2, options);

See Also

Merge(IndexRepository, MergeOptions)

Merges indexes from the specified index repository into the current index. Note that indexes in the repository will not be changed.

public void Merge(IndexRepository repository, MergeOptions options)
Parameter Type Description
repository IndexRepository The index repository to merge into.
options MergeOptions The merge options.

Remarks

If other indexes have a previous version, they must be updated before merging with IndexUpdater.

Examples

The example demonstrates how to merge an index repository into the current index.

string indexFolder1 = @"c:\MyIndex1\";
string indexFolder2 = @"c:\MyIndex2\";
string indexFolder3 = @"c:\MyIndex3\";
string documentsFolder1 = @"c:\MyDocuments1\";
string documentsFolder2 = @"c:\MyDocuments2\";
string documentsFolder3 = @"c:\MyDocuments3\";

Index index1 = new Index(indexFolder1); // Creating index1
index1.Add(documentsFolder1); // Indexing documents

IndexRepository repository = new IndexRepository(); // Creating index repository

Index index2 = repository.Create(indexFolder2); // Creating index2
index2.Add(documentsFolder2); // Indexing documents

Index index3 = repository.Create(indexFolder3); // Creating index3
index3.Add(documentsFolder3); // Indexing documents

MergeOptions options = new MergeOptions();
options.Cancellation = new Cancellation(); // Creating cancellation object

// Merging all indexes in the index repository into index1. Note that index2 and index3 will not be changed.
index1.Merge(repository, options);

See Also

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