Package org.neo4j.cypherdsl.core

Class FunctionInvocation

java.lang.Object

org.neo4j.cypherdsl.core.FunctionInvocation

All Implemented Interfaces:

Visitable, Expression

@API(status=EXPERIMENTAL,
     since="1.0")
public final class FunctionInvocation
extends java.lang.Object
implements Expression

See FunctionInvocation

Since:

1.0

Author:

Gerrit Meier, Michael J. Simons

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	FunctionInvocation.FunctionDefinition	Defines metadata for a function.

Method Summary

Modifier and Type	Method	Description
void	accept(Visitor visitor)	Accept a Visitor visiting this Visitable and its nested Visitables if applicable.
static FunctionInvocation	create(FunctionInvocation.FunctionDefinition definition)	Creates a FunctionInvocation based on a simple definition without any arguments.
static FunctionInvocation	create(FunctionInvocation.FunctionDefinition definition, Expression... expressions)	Creates a FunctionInvocation based on a simple definition with arguments.
static FunctionInvocation	create(FunctionInvocation.FunctionDefinition definition, PatternElement pattern)	Creates a new function invocation for a pattern element.
static FunctionInvocation	createDistinct(FunctionInvocation.FunctionDefinition definition, Expression... expressions)	Creates a FunctionInvocation based on a simple definition with arguments and adds the distinct operator to it.
java.lang.String	getFunctionName()
java.lang.String	toString()

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, in, isEmpty, isEqualTo, isFalse, isNotEqualTo, isNotNull, isNull, isTrue, lt, lte, matches, matches, multiply, ne, pow, property, remainder, startsWith, subtract

Method Detail

create

public static FunctionInvocation create(FunctionInvocation.FunctionDefinition definition)

Creates a FunctionInvocation based on a simple definition without any arguments.

Parameters:

definition - The definition of a function

Returns:

The invocation (a valid expression)

Since:

2021.2.3

create

public static FunctionInvocation create(FunctionInvocation.FunctionDefinition definition,
                                        Expression... expressions)

Creates a FunctionInvocation based on a simple definition with arguments.

Parameters:

definition - The definition of a function

expressions - The arguments to the function

Returns:

The invocation (a valid expression)

Since:

2021.2.3

createDistinct

public static FunctionInvocation createDistinct(FunctionInvocation.FunctionDefinition definition,
                                                Expression... expressions)

Creates a FunctionInvocation based on a simple definition with arguments and adds the distinct operator to it. This is only supported with FunctionInvocation.FunctionDefinition.isAggregate() returning true.

Parameters:

definition - The definition of a function

expressions - The arguments to the function

Returns:

The invocation (a valid expression)

Since:

2021.2.3

create

public static FunctionInvocation create(FunctionInvocation.FunctionDefinition definition,
                                        PatternElement pattern)

Creates a new function invocation for a pattern element.

Parameters:

definition - The definition of the function

pattern - The argument to the function

Returns:

A function invocation

Since:

2021.2.3

getFunctionName

@API(status=INTERNAL)
public java.lang.String getFunctionName()

Returns:

The name of this function.

accept

public void accept(Visitor visitor)

Description copied from interface: Visitable

Accept a Visitor visiting this Visitable and its nested Visitables if applicable.

Specified by:

accept in interface Visitable

Parameters:

visitor - the visitor to notify, must not be null.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object