Examples of org.apache.lucene.store.SingleInstanceLockFactory

org.apache.lucene.store.SingleInstanceLockFactory
Implements {@link LockFactory} for a single in-process instance,meaning all locking will take place through this one instance. Only use this {@link LockFactory} when you are certain allIndexReaders and IndexWriters for a given index are running against a single shared in-process Directory instance. This is currently the default locking for RAMDirectory. @see LockFactory

                final View view = entry.getValue();
                paths.put(toPath(ddoc.getId(), name), view);


                if (!states.containsKey(view)) {
                    final Directory dir = FSDirectory.open(viewDir(view, true),
                            new SingleInstanceLockFactory());
                    final UpdateSequence seq = getUpdateSequence(dir);
                    if (since == null) {
                        since = seq;
                    }
                    since = seq.isEarlierThan(since) ? seq : since;

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      catch ( IOException e ) {
        throw new SearchException( "Could not initialize NativeFSLockFactory", e );
      }
    }
    else if ( "single".equals( lockFactoryName ) ) {
      return new SingleInstanceLockFactory();
    }
    else if ( "none".equals( lockFactoryName ) ) {
      return new NoLockFactory();
    }
    else {

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      catch ( IOException e ) {
        throw new SearchException( "Could not initialize NativeFSLockFactory", e );
      }
    }
    else if ( "single".equals( lockFactoryName ) ) {
      return new SingleInstanceLockFactory();
    }
    else if ( "none".equals( lockFactoryName ) ) {
      return NoLockFactory.getNoLockFactory();
    }
    else {

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      final class MyRAMDirectory extends RAMDirectory {
        private LockFactory myLockFactory;
        MyRAMDirectory() {
          lockFactory = null;
          myLockFactory = new SingleInstanceLockFactory();
        }
        public Lock makeLock(String name) {
          return myLockFactory.makeLock(name);
        }
      }

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      final class MyRAMDirectory extends RAMDirectory {
        private LockFactory myLockFactory;
        MyRAMDirectory() {
          lockFactory = null;
          myLockFactory = new SingleInstanceLockFactory();
        }

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      final class MyRAMDirectory extends MockDirectoryWrapper {
        private LockFactory myLockFactory;
        MyRAMDirectory(Directory delegate) {
          super(random, delegate);
          lockFactory = null;
          myLockFactory = new SingleInstanceLockFactory();
        }
        @Override
        public Lock makeLock(String name) {
          return myLockFactory.makeLock(name);
        }

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      final class MyRAMDirectory extends MockDirectoryWrapper {
        private LockFactory myLockFactory;
        MyRAMDirectory(Directory delegate) {
          super(random, delegate);
          lockFactory = null;
          myLockFactory = new SingleInstanceLockFactory();
        }

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      final class MyRAMDirectory extends MockDirectoryWrapper {
        private LockFactory myLockFactory;
        MyRAMDirectory(Directory delegate) {
          super(random, delegate);
          lockFactory = null;
          myLockFactory = new SingleInstanceLockFactory();
        }
        @Override
        public Lock makeLock(String name) {
          return myLockFactory.makeLock(name);
        }

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      final class MyRAMDirectory extends MockDirectoryWrapper {
        private LockFactory myLockFactory;
        MyRAMDirectory(Directory delegate) {
          super(random, delegate);
          lockFactory = null;
          myLockFactory = new SingleInstanceLockFactory();
        }

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    index = index.replaceAll("//", "/");
    //System.out.println("index:" + index);
      File INDEX_DIR = new File(index);
    directory = new NIOFSDirectory(INDEX_DIR);
    directory.setLockFactory(new SingleInstanceLockFactory());
    boolean indexExists = IndexReader.indexExists(directory);
    if(!indexExists)
    {
      createIndex(directory);
    }

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