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Index ¶
Constants ¶
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Variables ¶
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Functions ¶
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Types ¶
type LevelDBCursor ¶
type LevelDBCursor struct {
// contains filtered or unexported fields
}
LevelDBCursor is a thin wrapper around native leveldb iterators.
func (*LevelDBCursor) Close ¶
func (c *LevelDBCursor) Close() error
Close releases associated resources.
func (*LevelDBCursor) First ¶
func (c *LevelDBCursor) First() bool
First moves the iterator to the first key/value pair. It returns false if such a pair does not exist. Panics if the cursor is closed.
func (*LevelDBCursor) Key ¶
func (c *LevelDBCursor) Key() (*database.Key, error)
Key returns the key of the current key/value pair, or ErrNotFound if done. Note that the key is trimmed to not include the prefix the cursor was opened with. The caller should not modify the contents of the returned slice, and its contents may change on the next call to Next.
func (*LevelDBCursor) Next ¶
func (c *LevelDBCursor) Next() bool
Next moves the iterator to the next key/value pair. It returns whether the iterator is exhausted. Panics if the cursor is closed.
func (*LevelDBCursor) Seek ¶
func (c *LevelDBCursor) Seek(key *database.Key) error
Seek moves the iterator to the first key/value pair whose key is greater than or equal to the given key. It returns ErrNotFound if such pair does not exist.
func (*LevelDBCursor) Value ¶
func (c *LevelDBCursor) Value() ([]byte, error)
Value returns the value of the current key/value pair, or ErrNotFound if done. The caller should not modify the contents of the returned slice, and its contents may change on the next call to Next.
Source Files