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d14809694f
* [NOD-1223] Delete unused files/packages. * [NOD-1223] Move signal and limits to the os package. * [NOD-1223] Put database and dbaccess into the db package. * [NOD-1223] Fold the logs package into the logger package. * [NOD-1223] Rename domainmessage to appmessage. * [NOD-1223] Rename to/from DomainMessage to AppMessage. * [NOD-1223] Move appmessage to the app packge. * [NOD-1223] Move protocol to the app packge. * [NOD-1223] Move the network package to the infrastructure packge. * [NOD-1223] Rename cmd to executables. * [NOD-1223] Fix go.doc in the logger package.
31 lines
1.1 KiB
Go
31 lines
1.1 KiB
Go
package database
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// Cursor iterates over database entries given some bucket.
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type Cursor interface {
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// Next moves the iterator to the next key/value pair. It returns whether the
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// iterator is exhausted. Panics if the cursor is closed.
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Next() bool
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// First moves the iterator to the first key/value pair. It returns false if
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// such a pair does not exist. Panics if the cursor is closed.
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First() bool
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// Seek moves the iterator to the first key/value pair whose key is greater
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// than or equal to the given key. It returns ErrNotFound if such pair does not
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// exist.
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Seek(key *Key) error
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// Key returns the key of the current key/value pair, or ErrNotFound if done.
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// The caller should not modify the contents of the returned key, and
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// its contents may change on the next call to Next.
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Key() (*Key, error)
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// Value returns the value of the current key/value pair, or ErrNotFound if done.
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// The caller should not modify the contents of the returned slice, and its
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// contents may change on the next call to Next.
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Value() ([]byte, error)
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// Close releases associated resources.
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Close() error
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}
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