Module org.neo4j.cypherdsl.core

Package org.neo4j.cypherdsl.core

Class MapExpression

java.lang.Object

org.neo4j.cypherdsl.core.ast.TypedSubtree<Expression>

org.neo4j.cypherdsl.core.MapExpression

All Implemented Interfaces:

Visitable, Expression

@API(status=STABLE,
     since="1.0")
public final class MapExpression
extends TypedSubtree<Expression>
implements Expression

A dedicated map expression.

Most of the comparison methods on this expression will not result in a sensible query fragment. A MapExpression is be useful as a concrete parameter to functions or as properties on nodes or relationships.

Since:

1.0

Author:

Michael J. Simons

Field Summary

Fields inherited from class org.neo4j.cypherdsl.core.ast.TypedSubtree

children

Method Summary

Modifier and Type	Method	Description
protected Visitable	prepareVisit(Expression child)	A hook for interfere with the visitation of child elements.
String	toString()	Most visitables will render themselves into a Cypher fragment preceded with the actual classname.

Methods inherited from class org.neo4j.cypherdsl.core.ast.TypedSubtree

accept, separator

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

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.ast.Visitable

accept

Method Details

prepareVisit

protected Visitable prepareVisit(Expression child)

Description copied from class: TypedSubtree

A hook for interfere with the visitation of child elements.

Overrides:

prepareVisit in class TypedSubtree<Expression>

Parameters:

child - The current child element

Returns:

The visitable that has been prepared

toString

public String toString()

Description copied from interface: Visitable

Most visitables will render themselves into a Cypher fragment preceded with the actual classname. The representation however is not cached - in contrast to the ones for full statements. Using toString is recommended for debugging purposes mainly, and not for production use.

The concrete classname has been prepended to help debugging and actually to discourage using fragments to build queries without explicitly rendering them, either as statement or going through the renderer on purpose.

Specified by:

toString in interface Visitable

Overrides:

toString in class Object

Returns:

A string representation of this visitable formatted as Classname{cypher=value}