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43 lines
1.2 KiB
43 lines
1.2 KiB
package store
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import (
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"github.com/lunny/nodb/store/driver"
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)
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type Tx struct {
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driver.Tx
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}
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func (tx *Tx) NewIterator() *Iterator {
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it := new(Iterator)
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it.it = tx.Tx.NewIterator()
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return it
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}
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func (tx *Tx) NewWriteBatch() WriteBatch {
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return tx.Tx.NewWriteBatch()
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}
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func (tx *Tx) RangeIterator(min []byte, max []byte, rangeType uint8) *RangeLimitIterator {
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return NewRangeLimitIterator(tx.NewIterator(), &Range{min, max, rangeType}, &Limit{0, -1})
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}
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func (tx *Tx) RevRangeIterator(min []byte, max []byte, rangeType uint8) *RangeLimitIterator {
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return NewRevRangeLimitIterator(tx.NewIterator(), &Range{min, max, rangeType}, &Limit{0, -1})
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}
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//count < 0, unlimit.
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//
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//offset must >= 0, if < 0, will get nothing.
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func (tx *Tx) RangeLimitIterator(min []byte, max []byte, rangeType uint8, offset int, count int) *RangeLimitIterator {
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return NewRangeLimitIterator(tx.NewIterator(), &Range{min, max, rangeType}, &Limit{offset, count})
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}
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//count < 0, unlimit.
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//
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//offset must >= 0, if < 0, will get nothing.
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func (tx *Tx) RevRangeLimitIterator(min []byte, max []byte, rangeType uint8, offset int, count int) *RangeLimitIterator {
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return NewRevRangeLimitIterator(tx.NewIterator(), &Range{min, max, rangeType}, &Limit{offset, count})
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}
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