Module org.neo4j.cypherdsl.core

Package org.neo4j.cypherdsl.core

Interface Property

All Superinterfaces:

Expression, IdentifiableElement, Visitable

@API(status=STABLE,
     since="1.0")
public non-sealed interface Property
extends Expression, IdentifiableElement

A property. A property might belong to a container such as a Node or Relationship, but it's not uncommon to extract single properties from maps or from various datatypes such as a duration returned from stored procedures. The container can be retrieved via getContainer() in case the property belongs to a node or relationship.

A property has always a reference to the name of the object it was extracted from.

Since:

1.0

Author:

Michael J. Simons

Method Summary

Modifier and Type	Method	Description
Named	getContainer()
default @NotNull Expression	getContainerReference()
@NotNull String	getName()	Returns the concatenated names of the property or the external reference (See referencedAs(String)) if set.
@NotNull List<PropertyLookup>	getNames()
@NotNull Property	referencedAs(String newReference)	Creates a new property with an external reference.
@NotNull Operation	to(Expression expression)	Creates an Operation setting this property to a new value.

Methods inherited from interface org.neo4j.cypherdsl.core.Expression

add, as, as, ascending, asCondition, concat, contains, descending, divide, endsWith, eq, gt, gte, hasSize, in, includesAll, includesAny, isEmpty, isEqualTo, isFalse, isNotEqualTo, isNotNull, isNull, isTrue, lt, lte, matches, matches, multiply, ne, pow, property, remainder, size, sorted, startsWith, subtract

Methods inherited from interface org.neo4j.cypherdsl.core.IdentifiableElement

asExpression

Methods inherited from interface org.neo4j.cypherdsl.core.ast.Visitable

accept, toString

Method Details

getName

@API(status=STABLE,
     since="2021.1.0")
@NotNull
@Contract(pure=true)
@NotNull String getName()

Returns the concatenated names of the property or the external reference (See referencedAs(String)) if set.

Returns:

A name to reference the property under in an external application

getNames

@NotNull
@Contract(pure=true)
@NotNull List<PropertyLookup> getNames()

Returns:

The actual property being looked up. The order matters, so this will return a list, not a collection.

getContainer

@Contract(pure=true)
Named getContainer()

Returns:

The container "owning" this property.

getContainerReference

@API(status=INTERNAL,
     since="2023.1.0")
@NotNull
@Contract(pure=true)
default @NotNull Expression getContainerReference()

Returns:

A reference to the container owning this property

referencedAs

@API(status=STABLE,
     since="2021.1.0")
@NotNull
@Contract(pure=true)
@NotNull Property referencedAs(String newReference)

Creates a new property with an external reference.

Parameters:

newReference - An arbitrary, external reference

Returns:

A new property

to

@NotNull
@Contract(pure=true)
@NotNull Operation to(Expression expression)

Creates an Operation setting this property to a new value. The property does not track the operations created with this method.

Parameters:

expression - expression describing the new value

Returns:

A new operation.