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Golang Triple.Subject方法代码示例

本文整理汇总了Golang中github.com/google/badwolf/triple.Triple.Subject方法的典型用法代码示例。如果您正苦于以下问题:Golang Triple.Subject方法的具体用法?Golang Triple.Subject怎么用?Golang Triple.Subject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github.com/google/badwolf/triple.Triple的用法示例。


在下文中一共展示了Triple.Subject方法的1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: tripleToRow

// tripleToRow converts a triple into a row using the binndings specidfied
// on the graph clause.
func tripleToRow(t *triple.Triple, cls *semantic.GraphClause) (table.Row, error) {
	r, s, p, o := make(table.Row), t.Subject(), t.Predicate(), t.Object()

	// Enforce binding validity inside te clause.
	bnd := make(map[string]*table.Cell)
	validBinding := func(k string, v *table.Cell) bool {
		c, ok := bnd[k]
		bnd[k] = v
		if !ok {
			return true
		}
		if reflect.DeepEqual(c, v) {
			return true
		}
		return false
	}

	// Subject related bindings.
	if cls.SBinding != "" {
		c := &table.Cell{N: s}
		r[cls.SBinding] = c
		if !validBinding(cls.SBinding, c) {
			return nil, nil
		}
	}
	if cls.SAlias != "" {
		c := &table.Cell{N: s}
		r[cls.SAlias] = c
		if !validBinding(cls.SAlias, c) {
			return nil, nil
		}
	}
	if cls.STypeAlias != "" {
		c := &table.Cell{S: s.Type().String()}
		r[cls.STypeAlias] = c
		if !validBinding(cls.STypeAlias, c) {
			return nil, nil
		}
	}
	if cls.SIDAlias != "" {
		c := &table.Cell{S: s.ID().String()}
		r[cls.SIDAlias] = c
		if !validBinding(cls.SIDAlias, c) {
			return nil, nil
		}
	}

	// Predicate related bindings.
	if cls.PBinding != "" {
		c := &table.Cell{P: p}
		r[cls.PBinding] = c
		if !validBinding(cls.PBinding, c) {
			return nil, nil
		}
	}
	if cls.PAlias != "" {
		c := &table.Cell{P: p}
		r[cls.PAlias] = c
		if !validBinding(cls.PAlias, c) {
			return nil, nil
		}
	}
	if cls.PIDAlias != "" {
		c := &table.Cell{S: string(p.ID())}
		r[cls.PIDAlias] = c
		if !validBinding(cls.PIDAlias, c) {
			return nil, nil
		}
	}
	if cls.PAnchorBinding != "" {
		if p.Type() != predicate.Temporal {
			return nil, fmt.Errorf("cannot retrieve the time anchor value for non temporal predicate %q in binding %q", p, cls.PAnchorBinding)
		}
		t, err := p.TimeAnchor()
		if err != nil {
			return nil, fmt.Errorf("failed to retrieve the time anchor value for predicate %q in binding %q with error %v", p, cls.PAnchorBinding, err)
		}
		c := &table.Cell{T: t}
		r[cls.PAnchorBinding] = c
		if !validBinding(cls.PAnchorBinding, c) {
			return nil, nil
		}
	}

	if cls.PAnchorAlias != "" {
		if p.Type() != predicate.Temporal {
			return nil, fmt.Errorf("cannot retrieve the time anchor value for non temporal predicate %q in binding %q", p, cls.PAnchorAlias)
		}
		t, err := p.TimeAnchor()
		if err != nil {
			return nil, fmt.Errorf("failed to retrieve the time anchor value for predicate %q in binding %q with error %v", p, cls.PAnchorAlias, err)
		}
		c := &table.Cell{T: t}
		r[cls.PAnchorAlias] = c
		if !validBinding(cls.PAnchorAlias, c) {
			return nil, nil
		}
	}
//.........这里部分代码省略.........
开发者ID:defrager,项目名称:badwolf,代码行数:101,代码来源:data_access.go


注:本文中的github.com/google/badwolf/triple.Triple.Subject方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。