bento_meta.util.cypher.entities

bento_meta.util.cypher.entities

Representations of cypher nodes, relationships, properties, paths

Module Contents

Classes

Entity	A property graph Entity. Base class.
N	A property graph Node.
R	A property graph Relationship or edge.
VarLenR	Variable length property graph Relationship or edge.
N0	Completely anonymous node ().
R0	Completely anonymous relationship -[]-, i.e. --
P	A property graph Property.
T	A property graph Triple; i.e., (n)-[r]->(m).
NoDirT	A directionless property graph Triple; i.e., (n)-[r]-(m).
G	A property graph Path.

Functions

countmaker([max])
_as(ent, alias)	Return copy of ent with As alias set.
_plain(ent)	Return entity without properties.
_anon(ent)	Return entity without variable name.
_var(ent)	Return entity without label or type.
_plain_var(ent)	Return entity with only the variable, no label or properties
_pattern(ent)
_condition(ent)
_return(ent)

bento_meta.util.cypher.entities.countmaker(max=10000)

class bento_meta.util.cypher.entities.Entity

Bases: object

A property graph Entity. Base class.

classmethod _reset_counter()

pattern()

Render entity as a match pattern.

condition()

Render entity as a condition (for WHERE, e.g.).

Return()

Render entity as a return value.

_add_props(props)

class bento_meta.util.cypher.entities.N(label=None, props=None, As=None)

Bases: Entity

A property graph Node.

count

relate_to(r, n)

pattern()

Render entity as a match pattern.

condition()

Render entity as a condition (for WHERE, e.g.).

Return()

Render entity as a return value.

class bento_meta.util.cypher.entities.R(Type=None, props=None, As=None, _dir='_right')

Bases: Entity

A property graph Relationship or edge.

count

relate(n, m)

pattern()

Render entity as a match pattern.

condition()

Render entity as a condition (for WHERE, e.g.).

Return()

Render entity as a return value.

class bento_meta.util.cypher.entities.VarLenR(min_len: int = -1, max_len: int = -1, Type=None, props=None, As=None, _dir='_right')

Bases: R

Variable length property graph Relationship or edge.

pattern()

Render entity as a match pattern.

class bento_meta.util.cypher.entities.N0

Bases: N

Completely anonymous node ().

pattern()

Render entity as a match pattern.

Return()

Render entity as a return value.

class bento_meta.util.cypher.entities.R0

Bases: R

Completely anonymous relationship -[]-, i.e. –

pattern()

Render entity as a match pattern.

Return()

Render entity as a return value.

class bento_meta.util.cypher.entities.P(handle, value=None, As=None)

Bases: Entity

A property graph Property.

count

parameterize = False

pattern()

Render entity as a match pattern.

condition()

Render entity as a condition (for WHERE, e.g.).

Return()

Render entity as a return value.

class bento_meta.util.cypher.entities.T(n, r, m)

Bases: Entity

A property graph Triple; i.e., (n)-[r]->(m).

count

nodes()

edge()

edges()

pattern()

Render entity as a match pattern.

condition()

Render entity as a condition (for WHERE, e.g.).

Return()

Render entity as a return value.

class bento_meta.util.cypher.entities.NoDirT(*args)

Bases: T

A directionless property graph Triple; i.e., (n)-[r]-(m).

pattern()

Render entity as a match pattern.

nodes()

edge()

edges()

class bento_meta.util.cypher.entities.G(*args)

Bases: Entity

A property graph Path. Defined as an ordered set of partially overlapping triples.

count

_create_path(args)

_append(ent)

nodes()

edges()

pattern()

Render entity as a match pattern.

condition()

Render entity as a condition (for WHERE, e.g.).

Return()

Render entity as a return value.

bento_meta.util.cypher.entities._as(ent, alias)

Return copy of ent with As alias set.

bento_meta.util.cypher.entities._plain(ent)

Return entity without properties.

bento_meta.util.cypher.entities._anon(ent)

Return entity without variable name.

bento_meta.util.cypher.entities._var(ent)

Return entity without label or type.

bento_meta.util.cypher.entities._plain_var(ent)

Return entity with only the variable, no label or properties

bento_meta.util.cypher.entities._pattern(ent)

bento_meta.util.cypher.entities._condition(ent)

bento_meta.util.cypher.entities._return(ent)