本文整理汇总了Golang中github.com/cayleygraph/cayley/graph.Iterator.Describe方法的典型用法代码示例。如果您正苦于以下问题：Golang Iterator.Describe方法的具体用法？Golang Iterator.Describe怎么用？Golang Iterator.Describe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/cayleygraph/cayley/graph.Iterator的用法示例。
在下文中一共展示了Iterator.Describe方法的4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: TestIterators
func TestIterators(t *testing.T) {
qs, opts, closer := makeGAE(t)
defer closer()
graphtest.MakeWriter(t, qs, opts, graphtest.MakeQuadSet()...)
require.Equal(t, int64(11), qs.Size(), "Incorrect number of quads")
var expected = []quad.Quad{
quad.MakeRaw("C", "follows", "B", ""),
quad.MakeRaw("C", "follows", "D", ""),
}
it := qs.QuadIterator(quad.Subject, qs.ValueOf(quad.Raw("C")))
graphtest.ExpectIteratedQuads(t, qs, it, expected)
// Test contains
it = qs.QuadIterator(quad.Label, qs.ValueOf(quad.Raw("status_graph")))
gqs := qs.(*QuadStore)
key := gqs.createKeyForQuad(quad.MakeRaw("G", "status", "cool", "status_graph"))
token := &Token{quadKind, key.StringID()}
require.True(t, it.Contains(token), "Contains failed")
// Test cloning an iterator
var it2 graph.Iterator
it2 = it.Clone()
x := it2.Describe()
y := it.Describe()
require.Equal(t, y.Name, x.Name, "Iterator Clone was not successful")
}示例2: runIterator
func (wk *worker) runIterator(it graph.Iterator) {
if wk.wantShape() {
iterator.OutputQueryShapeForIterator(it, wk.qs, wk.shape)
return
}
it, _ = it.Optimize()
if clog.V(2) {
b, err := json.MarshalIndent(it.Describe(), "", " ")
if err != nil {
clog.Infof("failed to format description: %v", err)
} else {
clog.Infof("%s", b)
}
}
for {
select {
case <-wk.kill:
return
default:
}
if !graph.Next(it) {
break
}
tags := make(map[string]graph.Value)
it.TagResults(tags)
if !wk.send(&Result{actualResults: tags}) {
break
}
for it.NextPath() {
select {
case <-wk.kill:
return
default:
}
tags := make(map[string]graph.Value)
it.TagResults(tags)
if !wk.send(&Result{actualResults: tags}) {
break
}
}
}
if clog.V(2) {
bytes, _ := json.MarshalIndent(graph.DumpStats(it), "", " ")
clog.Infof(string(bytes))
}
it.Close()
}示例3: runIteratorWithCallback
func (wk *worker) runIteratorWithCallback(it graph.Iterator, callback otto.Value, this otto.FunctionCall, limit int) {
n := 0
it, _ = it.Optimize()
if clog.V(2) {
b, err := json.MarshalIndent(it.Describe(), "", " ")
if err != nil {
clog.Infof("failed to format description: %v", err)
} else {
clog.Infof("%s", b)
}
}
for {
select {
case <-wk.kill:
return
default:
}
if !graph.Next(it) {
break
}
tags := make(map[string]graph.Value)
it.TagResults(tags)
val, _ := this.Otto.ToValue(wk.tagsToValueMap(tags))
val, _ = callback.Call(this.This, val)
n++
if limit >= 0 && n >= limit {
break
}
for it.NextPath() {
select {
case <-wk.kill:
return
default:
}
tags := make(map[string]graph.Value)
it.TagResults(tags)
val, _ := this.Otto.ToValue(wk.tagsToValueMap(tags))
val, _ = callback.Call(this.This, val)
n++
if limit >= 0 && n >= limit {
break
}
}
}
it.Close()
}示例4: TestIterators
func TestIterators(t *testing.T) {
clog.Infof("\n-----------\n")
inst, opts, err := createInstance()
defer inst.Close()
if err != nil {
t.Fatalf("failed to create instance: %v", err)
}
qs, _, _ := makeTestStore(simpleGraph, opts)
if qs.Size() != 11 {
t.Fatal("Incorrect number of quads")
}
var expected = []string{
quad.Quad{"C", "follows", "B", ""}.String(),
quad.Quad{"C", "follows", "D", ""}.String(),
}
it := qs.QuadIterator(quad.Subject, qs.ValueOf("C"))
if got, ok := compareResults(qs, it, expected); !ok {
t.Errorf("Unexpected iterated result, got:%v expect:%v", got, expected)
}
// Test contains
it = qs.QuadIterator(quad.Label, qs.ValueOf("status_graph"))
gqs := qs.(*QuadStore)
key := gqs.createKeyForQuad(quad.Quad{"G", "status", "cool", "status_graph"})
token := &Token{quadKind, key.StringID()}
if !it.Contains(token) {
t.Error("Contains failed")
}
// Test cloning an iterator
var it2 graph.Iterator
it2 = it.Clone()
x := it2.Describe()
y := it.Describe()
if x.Name != y.Name {
t.Errorf("Iterator Clone was not successful got: %v, expected: %v", x.Name, y.Name)
}
}