本文整理汇总了Golang中github.com/blevesearch/bleve/index/store.KVReader.Iterator方法的典型用法代码示例。如果您正苦于以下问题：Golang KVReader.Iterator方法的具体用法？Golang KVReader.Iterator怎么用？Golang KVReader.Iterator使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类github.com/blevesearch/bleve/index/store.KVReader的用法示例。
在下文中一共展示了KVReader.Iterator方法的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Golang代码示例。
示例1: loadSchema
func (udc *UpsideDownCouch) loadSchema(kvreader store.KVReader) (err error) {
keyPrefix := []byte{'f'}
it := kvreader.Iterator(keyPrefix)
defer it.Close()
it.Seek(keyPrefix)
key, val, valid := it.Current()
for valid {
// stop when
if !bytes.HasPrefix(key, keyPrefix) {
break
}
fieldRow, err := NewFieldRowKV(key, val)
if err != nil {
return err
}
udc.fieldIndexes[fieldRow.name] = fieldRow.index
if int(fieldRow.index) > udc.lastFieldIndex {
udc.lastFieldIndex = int(fieldRow.index)
}
it.Next()
key, val, valid = it.Current()
}
return
}示例2: dumpPrefix
func (udc *UpsideDownCouch) dumpPrefix(kvreader store.KVReader, rv chan interface{}, prefix []byte) {
start := prefix
if start == nil {
start = []byte{0}
}
it := kvreader.Iterator(start)
defer it.Close()
key, val, valid := it.Current()
for valid {
if prefix != nil && !bytes.HasPrefix(key, prefix) {
break
}
row, err := ParseFromKeyValue(key, val)
if err != nil {
rv <- err
return
}
rv <- row
it.Next()
key, val, valid = it.Current()
}
}示例3: countDocs
func (udc *UpsideDownCouch) countDocs(kvreader store.KVReader) uint64 {
it := kvreader.Iterator([]byte{'b'})
defer it.Close()
var rv uint64
key, _, valid := it.Current()
for valid {
if !bytes.HasPrefix(key, []byte{'b'}) {
break
}
rv++
it.Next()
key, _, valid = it.Current()
}
return rv
}示例4: loadSchema
func (udc *UpsideDownCouch) loadSchema(kvreader store.KVReader) (err error) {
keyPrefix := []byte{'f'}
it := kvreader.Iterator(keyPrefix)
defer func() {
if cerr := it.Close(); err == nil && cerr != nil {
err = cerr
}
}()
it.Seek(keyPrefix)
key, val, valid := it.Current()
for valid {
// stop when
if !bytes.HasPrefix(key, keyPrefix) {
break
}
var fieldRow *FieldRow
fieldRow, err = NewFieldRowKV(key, val)
if err != nil {
return
}
udc.fieldCache.AddExisting(fieldRow.name, fieldRow.index)
it.Next()
key, val, valid = it.Current()
}
keyPrefix = []byte{'v'}
val, err = kvreader.Get(keyPrefix)
if err != nil {
return
}
var vr *VersionRow
vr, err = NewVersionRowKV(keyPrefix, val)
if err != nil {
return
}
if vr.version != Version {
err = IncompatibleVersion
return
}
return
}示例5: countDocs
func (udc *UpsideDownCouch) countDocs(kvreader store.KVReader) (count uint64, err error) {
it := kvreader.Iterator([]byte{'b'})
defer func() {
if cerr := it.Close(); err == nil && cerr != nil {
err = cerr
}
}()
key, _, valid := it.Current()
for valid {
if !bytes.HasPrefix(key, []byte{'b'}) {
break
}
count++
it.Next()
key, _, valid = it.Current()
}
return
}