public
interface
DBIterator
implements Closeable Iterator<E>| org.iq80.leveldb.DBIterator |
Summary
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Returns the next element in the iteration, without advancing the iteration.
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Repositions the iterator so the key of the next BlockElement
returned greater than or equal to the specified targetKey.
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Repositions the iterator so is is at the beginning of the Database.
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Repositions the iterator so it is at the end of of the Database.
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Inherited Methods | |||||||||||
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From interface
java.io.Closeable
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From interface
java.lang.AutoCloseable
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From interface
java.util.Iterator
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Public Methods
public abstract boolean hasPrev ()
Returns
- true if there is a previous entry in the iteration.
public abstract Entry<byte[], byte[]> peekNext ()
Returns the next element in the iteration, without advancing the iteration.
public abstract Entry<byte[], byte[]> peekPrev ()
Returns
- the previous element in the iteration, without rewinding the iteration.
public abstract Entry<byte[], byte[]> prev ()
Returns
- the previous element in the iteration and rewinds the iteration.
public abstract void seek (byte[] key)
Repositions the iterator so the key of the next BlockElement returned greater than or equal to the specified targetKey.
public abstract void seekToFirst ()
Repositions the iterator so is is at the beginning of the Database.
public abstract void seekToLast ()
Repositions the iterator so it is at the end of of the Database.