query

package
v0.4.3 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Jan 23, 2026 License: MIT Imports: 8 Imported by: 21

Documentation

Index

Constants

View Source 
const (
	PathSymbol      = "p"
	NodeSymbol      = "n"
	EdgeSymbol      = "r"
	EdgeStartSymbol = "s"
	EdgeEndSymbol   = "e"
)

Variables

View Source 
var (
	ErrAmbiguousQueryVariables = errors.New("query mixes node and relationship query variables")
)

Functions

func AddKind 

func AddKind(reference graph.Criteria, kind graph.Kind) *cypherModel.UpdatingClause

func AddKinds 

func AddKinds(reference graph.Criteria, kinds graph.Kinds) *cypherModel.UpdatingClause

func After 

func After(reference graph.Criteria, value any) *cypherModel.Comparison

func And 

func And(criteria ...graph.Criteria) *cypherModel.Conjunction

func Ascending 

func Ascending() cypherModel.SortOrder

func Before 

func Before(reference graph.Criteria, value time.Time) *cypherModel.Comparison

func BeforeGraphQuery 

func BeforeGraphQuery(reference1, reference2 graph.Criteria) *cypherModel.Comparison

func CaseInsensitiveStringContains 

func CaseInsensitiveStringContains(reference graph.Criteria, value string) *cypherModel.Comparison

func CaseInsensitiveStringEndsWith 

func CaseInsensitiveStringEndsWith(reference graph.Criteria, value string) *cypherModel.Comparison

func CaseInsensitiveStringStartsWith 

func CaseInsensitiveStringStartsWith(reference graph.Criteria, value string) *cypherModel.Comparison

func Count 

func Count(reference graph.Criteria) *cypherModel.FunctionInvocation

func CountDistinct 

func CountDistinct(reference graph.Criteria) *cypherModel.FunctionInvocation

func Create 

func Create(elements ...graph.Criteria) *cypherModel.UpdatingClause

func Delete 

func Delete(leaves ...graph.Criteria) *cypherModel.UpdatingClause

func DeleteKind 

func DeleteKind(reference graph.Criteria, kind graph.Kind) *cypherModel.UpdatingClause

func DeleteKinds 

func DeleteKinds(reference graph.Criteria, kinds graph.Kinds) *cypherModel.UpdatingClause

func DeleteProperties 

func DeleteProperties(reference graph.Criteria, propertyNames ...string) *cypherModel.UpdatingClause

func DeleteProperty 

func DeleteProperty(reference *cypherModel.PropertyLookup) *cypherModel.UpdatingClause

func Descending 

func Descending() cypherModel.SortOrder

func EmptySinglePartQuery 

func EmptySinglePartQuery() *cypherModel.RegularQuery

func End 

func End() *cypher.Variable

func EndID 

func EndID() *cypher.FunctionInvocation

func EndNodePattern 

func EndNodePattern(kinds graph.Kinds, properties *cypherModel.Parameter) *cypherModel.NodePattern

func EndProperty 

func EndProperty(name string) *cypherModel.PropertyLookup

func Equals 

func Equals(reference graph.Criteria, value any) *cypherModel.Comparison

func Exists 

func Exists(reference graph.Criteria) *cypherModel.Comparison

func GetFirstReadingClause 

func GetFirstReadingClause(query *cypherModel.RegularQuery) *cypherModel.ReadingClause

func GreaterThan 

func GreaterThan(reference graph.Criteria, value any) *cypherModel.Comparison

func GreaterThanOrEquals 

func GreaterThanOrEquals(reference graph.Criteria, value any) *cypherModel.Comparison

func HasRelationships 

func HasRelationships(reference *cypherModel.Variable) *cypherModel.PatternPredicate

func Identity 

func Identity(entity cypher.Expression) *cypher.FunctionInvocation

func In 

func In(reference graph.Criteria, value any) *cypherModel.Comparison

func InIDs 

func InIDs[T *cypherModel.FunctionInvocation | *cypherModel.Variable](reference T, ids ...graph.ID) *cypherModel.Comparison

func InInverted 

func InInverted(reference graph.Criteria, value any) *cypherModel.Comparison

func IsNotNull 

func IsNotNull(reference graph.Criteria) *cypherModel.Comparison

func IsNull 

func IsNull(reference graph.Criteria) *cypherModel.Comparison

func Kind 

func Kind(reference graph.Criteria, kinds ...graph.Kind) *cypherModel.KindMatcher

func KindIn 

func KindIn(reference graph.Criteria, kinds ...graph.Kind) *cypherModel.KindMatcher

func KindsOf 

func KindsOf(ref graph.Criteria) *cypherModel.FunctionInvocation

func LessThan 

func LessThan(reference graph.Criteria, value any) *cypherModel.Comparison

func LessThanGraphQuery 

func LessThanGraphQuery(reference1, reference2 graph.Criteria) *cypherModel.Comparison

func LessThanOrEquals 

func LessThanOrEquals(reference graph.Criteria, value any) *cypherModel.Comparison

func Limit 

func Limit(limit int) *cypherModel.Limit

func Literal 

func Literal(value any) *cypherModel.Literal

func Node 

func Node() *cypher.Variable

func NodeID 

func NodeID() *cypher.FunctionInvocation

func NodePattern 

func NodePattern(kinds graph.Kinds, properties *cypherModel.Parameter) *cypherModel.NodePattern

func NodeProperty 

func NodeProperty(name string) *cypherModel.PropertyLookup

func Not 

func Not(expression graph.Criteria) *cypherModel.Negation

func Offset 

func Offset(offset int) *cypherModel.Skip

func Or 

func Or(criteria ...graph.Criteria) *cypherModel.Parenthetical

func Order 

func Order(reference, direction graph.Criteria) *cypherModel.SortItem

func OrderBy 

func OrderBy(leaves ...graph.Criteria) *cypherModel.Order

func Parameter 

func Parameter(value any) *cypherModel.Parameter

func Path 

func Path() *cypher.Variable

func Property 

func Property(qualifier graph.Criteria, name string) *cypherModel.PropertyLookup

func Relationship 

func Relationship() *cypher.Variable

func RelationshipID 

func RelationshipID() *cypher.FunctionInvocation

func RelationshipPattern 

func RelationshipPattern(kind graph.Kind, properties *cypherModel.Parameter, direction graph.Direction) *cypherModel.RelationshipPattern

func RelationshipProperty 

func RelationshipProperty(name string) *cypherModel.PropertyLookup

func Returning 

func Returning(elements ...graph.Criteria) *cypherModel.Return

func ReturningDistinct 

func ReturningDistinct(elements ...graph.Criteria) *cypherModel.Return

func SetProperties 

func SetProperties(reference graph.Criteria, properties map[string]any) *cypherModel.UpdatingClause

func SetProperty 

func SetProperty(reference graph.Criteria, value any) *cypherModel.UpdatingClause

func SinglePartQuery 

func SinglePartQuery(expressions ...graph.Criteria) *cypherModel.RegularQuery

func Size 

func Size(expression graph.Criteria) *cypherModel.FunctionInvocation

func Start 

func Start() *cypher.Variable

func StartID 

func StartID() *cypher.FunctionInvocation

func StartNodePattern 

func StartNodePattern(kinds graph.Kinds, properties *cypherModel.Parameter) *cypherModel.NodePattern

func StartProperty 

func StartProperty(name string) *cypherModel.PropertyLookup

func StringContains 

func StringContains(reference graph.Criteria, value string) *cypherModel.Comparison

func StringEndsWith 

func StringEndsWith(reference graph.Criteria, value string) *cypherModel.Comparison

func StringStartsWith 

func StringStartsWith(reference graph.Criteria, value string) *cypherModel.Comparison

func Update 

func Update(clauses ...*cypherModel.UpdatingClause) []*cypherModel.UpdatingClause

func Updatef 

func Updatef(provider graph.CriteriaProvider) []*cypherModel.UpdatingClause

func Variable 

func Variable(name string) *cypher.Variable

func Where 

func Where(expression graph.Criteria) *cypherModel.Where

func Xor 

func Xor(criteria ...graph.Criteria) *cypherModel.ExclusiveDisjunction

Types

type Builder 

type Builder struct {
	// contains filtered or unexported fields
}

func NewBuilder 

func NewBuilder(cache *Cache) *Builder

func NewBuilderWithCriteria 

func NewBuilderWithCriteria(criteria ...graph.Criteria) *Builder

func (*Builder) Apply 

func (s *Builder) Apply(criteria ...graph.Criteria)

func (*Builder) Build 

func (s *Builder) Build(allShortestPaths bool) (*cypher.RegularQuery, error)

func (*Builder) RegularQuery 

func (s *Builder) RegularQuery() *cypher.RegularQuery

type Cache 

type Cache struct {
}

type ParameterRewriter 

type ParameterRewriter struct {
	walk.Visitor[cypher.SyntaxNode]

	Parameters map[string]any
	// contains filtered or unexported fields
}

func NewParameterRewriter 

func NewParameterRewriter() *ParameterRewriter

func (*ParameterRewriter) Enter 

func (s *ParameterRewriter) Enter(node cypher.SyntaxNode)

type SortDirection 

type SortDirection string
const SortDirectionAscending SortDirection = "asc"
const SortDirectionDescending SortDirection = "desc"

type SortItem 

type SortItem struct {
	SortCriteria graph.Criteria
	Direction    SortDirection
}

type SortItems 

type SortItems []SortItem

func (SortItems) FormatCypherOrder 

func (s SortItems) FormatCypherOrder() *cypher.Order

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