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51 lines
1003 B
51 lines
1003 B
package skiplist
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import "bytes"
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func compareElement(a *SkipListElement, key []byte) int {
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if len(a.Key) == 0 {
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return -1
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}
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return bytes.Compare(a.Key, key)
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}
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func (node *SkipListElement) Reference() *SkipListElementReference {
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if node == nil {
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return nil
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}
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return &SkipListElementReference{
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ElementPointer: node.Id,
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Key: node.Key,
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}
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}
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func (t *SkipList) SaveElement(element *SkipListElement) error {
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if element == nil {
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return nil
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}
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return t.ListStore.SaveElement(element.Id, element)
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}
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func (t *SkipList) DeleteElement(element *SkipListElement) error {
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if element == nil {
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return nil
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}
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return t.ListStore.DeleteElement(element.Id)
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}
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func (t *SkipList) LoadElement(ref *SkipListElementReference) (*SkipListElement, error) {
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if ref.IsNil() {
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return nil, nil
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}
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return t.ListStore.LoadElement(ref.ElementPointer)
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}
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func (ref *SkipListElementReference) IsNil() bool {
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if ref == nil {
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return true
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}
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if len(ref.Key) == 0 {
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return true
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}
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return false
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}
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