com.github.javaparser.ast.expr

Class MethodReferenceExpr

java.lang.Object

com.github.javaparser.ast.Node

com.github.javaparser.ast.expr.Expression

com.github.javaparser.ast.expr.MethodReferenceExpr

All Implemented Interfaces:

NodeWithIdentifier<MethodReferenceExpr>, NodeWithRange<Node>, NodeWithTokenRange<Node>, NodeWithTypeArguments<MethodReferenceExpr>, Observable, Visitable, HasParentNode<Node>, Cloneable

public class MethodReferenceExpr
extends Expression
implements NodeWithTypeArguments<MethodReferenceExpr>, NodeWithIdentifier<MethodReferenceExpr>

Method reference expressions introduced in Java 8 specifically designed to simplify lambda Expressions. Note that the field "identifier", indicating the word to the right of the ::, is not always a method name, it can be "new".
In System.out::println; the scope is System.out and the identifier is "println"
(test ? stream.map(String::trim) : stream)::toArray;
In Bar<String>::<Integer>new the String type argument is on the scope, and the Integer type argument is on this MethodReferenceExpr.

Author:

Raquel Pau

Nested Class Summary

Nested classes/interfaces inherited from class com.github.javaparser.ast.Node

Node.ObserverRegistrationMode, Node.Parsedness

Field Summary

Fields inherited from class com.github.javaparser.ast.Node

ABSOLUTE_BEGIN_LINE, ABSOLUTE_END_LINE, NODE_BY_BEGIN_POSITION, prettyPrinterNoCommentsConfiguration

Constructor Summary

Constructors

Constructor and Description
MethodReferenceExpr()
MethodReferenceExpr(Expression scope, NodeList<Type> typeArguments, String identifier)
MethodReferenceExpr(TokenRange tokenRange, Expression scope, NodeList<Type> typeArguments, String identifier) This constructor is used by the parser and is considered private.

Method Summary

Modifier and Type	Method and Description
<R,A> R	accept(GenericVisitor<R,A> v, A arg) Accept method for visitor support.
<A> void	accept(VoidVisitor<A> v, A arg) Accept method for visitor support.
MethodReferenceExpr	clone()
String	getIdentifier()
MethodReferenceExprMetaModel	getMetaModel()
List<NodeList<?>>	getNodeLists() The list of NodeLists owned by this node.
Expression	getScope()
Optional<NodeList<Type>>	getTypeArguments()
boolean	remove(Node node)
boolean	replace(Node node, Node replacementNode)
MethodReferenceExpr	setIdentifier(String identifier)
MethodReferenceExpr	setScope(Expression scope)
MethodReferenceExpr	setTypeArguments(NodeList<Type> typeArguments) Sets the typeArguments

Methods inherited from class com.github.javaparser.ast.Node

addOrphanComment, customInitialization, equals, getAllContainedComments, getChildNodes, getChildNodesByType, getComment, getData, getNodesByType, getOrphanComments, getParentNode, getParentNodeForChildren, getParsed, getRange, getTokenRange, hasComment, hashCode, isRegistered, notifyPropertyChange, register, register, registerForSubtree, remove, removeComment, removeForced, removeOrphanComment, setAsParentNodeOf, setAsParentNodeOf, setBlockComment, setComment, setData, setLineComment, setParentNode, setParsed, setRange, setTokenRange, toString, toString, tryAddImportToParentCompilationUnit, unregister

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.github.javaparser.ast.nodeTypes.NodeWithTypeArguments

isUsingDiamondOperator, removeTypeArguments, setDiamondOperator, setTypeArguments

Methods inherited from interface com.github.javaparser.ast.nodeTypes.NodeWithIdentifier

getId, setId

Methods inherited from interface com.github.javaparser.HasParentNode

getAncestorOfType

Methods inherited from interface com.github.javaparser.ast.nodeTypes.NodeWithRange

containsWithin, getBegin, getEnd, isPositionedAfter, isPositionedBefore

Constructor Detail

MethodReferenceExpr

public MethodReferenceExpr()

MethodReferenceExpr

public MethodReferenceExpr(Expression scope,
                           NodeList<Type> typeArguments,
                           String identifier)

MethodReferenceExpr

@Generated(value="com.github.javaparser.generator.core.node.MainConstructorGenerator")
public MethodReferenceExpr(TokenRange tokenRange,
                                                                                                                  Expression scope,
                                                                                                                  NodeList<Type> typeArguments,
                                                                                                                  String identifier)

This constructor is used by the parser and is considered private.

Method Detail

accept

public <R,A> R accept(GenericVisitor<R,A> v,
                      A arg)

Description copied from interface: Visitable

Accept method for visitor support.

Specified by:

accept in interface Visitable

Type Parameters:

R - the type of the return value of the visitor

A - the type the user argument passed to the visitor

Parameters:

v - the visitor implementation

arg - the argument passed to the visitor (of type A)

Returns:

the result of the visit (of type R)

accept

public <A> void accept(VoidVisitor<A> v,
                       A arg)

Description copied from interface: Visitable

Accept method for visitor support.

Specified by:

accept in interface Visitable

Type Parameters:

A - the type the argument passed for the visitor

Parameters:

v - the visitor implementation

arg - any value relevant for the visitor (of type A)

getScope

@Generated(value="com.github.javaparser.generator.core.node.PropertyGenerator")
public Expression getScope()

setScope

@Generated(value="com.github.javaparser.generator.core.node.PropertyGenerator")
public MethodReferenceExpr setScope(Expression scope)

getTypeArguments

@Generated(value="com.github.javaparser.generator.core.node.PropertyGenerator")
public Optional<NodeList<Type>> getTypeArguments()

Specified by:

getTypeArguments in interface NodeWithTypeArguments<MethodReferenceExpr>

Returns:

the types that can be found in the type arguments: <String, Integer>.

setTypeArguments

@Generated(value="com.github.javaparser.generator.core.node.PropertyGenerator")
public MethodReferenceExpr setTypeArguments(NodeList<Type> typeArguments)

Sets the typeArguments

Specified by:

setTypeArguments in interface NodeWithTypeArguments<MethodReferenceExpr>

Parameters:

typeArguments - the typeArguments, can be null

Returns:

this, the MethodReferenceExpr

getIdentifier

@Generated(value="com.github.javaparser.generator.core.node.PropertyGenerator")
public String getIdentifier()

Specified by:

getIdentifier in interface NodeWithIdentifier<MethodReferenceExpr>

setIdentifier

@Generated(value="com.github.javaparser.generator.core.node.PropertyGenerator")
public MethodReferenceExpr setIdentifier(String identifier)

Specified by:

setIdentifier in interface NodeWithIdentifier<MethodReferenceExpr>

getNodeLists

@Generated(value="com.github.javaparser.generator.core.node.GetNodeListsGenerator")
public List<NodeList<?>> getNodeLists()

Description copied from class: Node

The list of NodeLists owned by this node.

Overrides:

getNodeLists in class Node

remove

@Generated(value="com.github.javaparser.generator.core.node.RemoveMethodGenerator")
public boolean remove(Node node)

Overrides:

remove in class Expression

clone

@Generated(value="com.github.javaparser.generator.core.node.CloneGenerator")
public MethodReferenceExpr clone()

Overrides:

clone in class Expression

getMetaModel

@Generated(value="com.github.javaparser.generator.core.node.GetMetaModelGenerator")
public MethodReferenceExprMetaModel getMetaModel()

Overrides:

getMetaModel in class Expression

replace

@Generated(value="com.github.javaparser.generator.core.node.ReplaceMethodGenerator")
public boolean replace(Node node,
                                                                                                            Node replacementNode)

Overrides:

replace in class Expression