Module org.neo4j.cypherdsl.core

Package org.neo4j.cypherdsl.core

Record Class LabelExpression

java.lang.Object

java.lang.Record

org.neo4j.cypherdsl.core.LabelExpression

Record Components:

type - whether this is a leaf or another node

negated - a flag if this subtree is negated

value - a single value or a list of value for LabelExpression.Type.COLON_DISJUNCTION or LabelExpression.Type.COLON_CONJUNCTION

lhs - the left hand site of this tree

rhs - the right hand site of this tree

All Implemented Interfaces:

Visitable

public record LabelExpression(LabelExpression.Type type, boolean negated, List<String> value, LabelExpression lhs, LabelExpression rhs)
extends Record
implements Visitable

Represents a label expression, usable in Cypher.node(LabelExpression).

Since:

2023.0.2

Author:

Michael J. Simons

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	LabelExpression.Type	Type of this expression

Constructor Summary

Constructors

Constructor	Description
LabelExpression(String value)	Creates a leaf expression from a string
LabelExpression(LabelExpression.Type type, boolean negated, List<String> value, LabelExpression lhs, LabelExpression rhs)	Creates an immutable label expression.

Method Summary

Modifier and Type	Method	Description
LabelExpression	and(LabelExpression next)	Create a conjunction
final boolean	equals(Object o)	Indicates whether some other object is "equal to" this one.
final int	hashCode()	Returns a hash code value for this object.
LabelExpression	lhs()	Returns the value of the lhs record component.
LabelExpression	negate()	Negates this expressio
boolean	negated()	Returns the value of the negated record component.
LabelExpression	or(LabelExpression next)	Create a disjunction
LabelExpression	rhs()	Returns the value of the rhs record component.
final String	toString()	Returns a string representation of this record class.
LabelExpression.Type	type()	Returns the value of the type record component.
List<String>	value()	Returns the value of the value record component.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

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

accept

Constructor Details

LabelExpression

public LabelExpression(LabelExpression.Type type,
 boolean negated,
 List<String> value,
 LabelExpression lhs,
 LabelExpression rhs)

Creates an immutable label expression.

Parameters:

type - whether this is a leaf or another node

negated - a flag if this subtree is negated

value - a single value or a list of value for LabelExpression.Type.COLON_DISJUNCTION or LabelExpression.Type.COLON_CONJUNCTION

lhs - the left hand site of this tree

rhs - the right hand site of this tree

LabelExpression

public LabelExpression(String value)

Creates a leaf expression from a string

Parameters:

value - the leaf value

Method Details

and

public LabelExpression and(LabelExpression next)

Create a conjunction

Parameters:

next - the expression to add

Returns:

a new expression

or

public LabelExpression or(LabelExpression next)

Create a disjunction

Parameters:

next - the expression to add

Returns:

a new expression

negate

public LabelExpression negate()

Negates this expressio

Returns:

a new expression

toString

public final String toString()

Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.

Specified by:

toString in interface Visitable

Specified by:

toString in class Record

Returns:

a string representation of this object

hashCode

public final int hashCode()

Returns a hash code value for this object. The value is derived from the hash code of each of the record components.

Specified by:

hashCode in class Record

Returns:

a hash code value for this object

equals

public final boolean equals(Object o)

Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. Reference components are compared with Objects::equals(Object,Object); primitive components are compared with '=='.

Specified by:

equals in class Record

Parameters:

o - the object with which to compare

Returns:

true if this object is the same as the o argument; false otherwise.

type

public LabelExpression.Type type()

Returns the value of the type record component.

Returns:

the value of the type record component

negated

public boolean negated()

Returns the value of the negated record component.

Returns:

the value of the negated record component

value

public List<String> value()

Returns the value of the value record component.

Returns:

the value of the value record component

lhs

public LabelExpression lhs()

Returns the value of the lhs record component.

Returns:

the value of the lhs record component

rhs

public LabelExpression rhs()

Returns the value of the rhs record component.

Returns:

the value of the rhs record component