Class SwitchEntry

java.lang.Object
com.github.javaparser.ast.Node
com.github.javaparser.ast.stmt.SwitchEntry
All Implemented Interfaces:
NodeWithRange<Node>, NodeWithStatements<SwitchEntry>, NodeWithTokenRange<Node>, Observable, Visitable, HasParentNode<Node>, Cloneable
public class SwitchEntry extends Node implements NodeWithStatements<SwitchEntry>

One case in a switch statement

The main Javadoc is in SwitchStmt

Java 1.0-11

switch (i) {
  case 1:
  case 2:
    System.out.println(444);
    break;
  default:
    System.out.println(0);
}

This contains three SwitchEntrys. All of them are of type STATEMENT_GROUP.
  • The first one has label 1 and no statements.
  • The second has label 2 and two statements (the println and the break).
  • The third, the default, has no label and one statement.

Java 12-

    case 1 -> 15*15;
    case 2 -> { a++; b++; }
    case 3 -> throw new Exception();
These are three new variants.
  • The first one is of type EXPRESSION and stores its Expression in an ExpressionStmt which is stored as the first and only statement in statements.
  • The second one is of type BLOCK and stores its BlockStmt as the first and only statement in statements.
  • The third one is of type THROWS_STATEMENT and stores its ThrowStmt as the first and only statement in statements.
    case MONDAY, FRIDAY, SUNDAY -> 6;
Multiple case labels are now allowed. 
    case 16*16, 10+10 -> 6;
Many kinds of expressions are now allowed.
Author:
Julio Vilmar Gesser
See Also:

  • Constructor Details

  • Method Details

    • isSwitchStatementEntry

      public boolean isSwitchStatementEntry()
      This is required for the ConcreteSyntaxModel, specifically to determine whether this entry uses the classic switch statement syntax (e.g. `case X: ...`) or the newer switch expression syntax (`case X -> ...`). The entry type is STATEMENT_GROUP in the switch statement case and all other values are for the various switch expressions.

    • 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)

    • getLabels

      public NodeList<Expression> getLabels()

    • getStatements

      public NodeList<Statement> getStatements()
      Specified by:
      getStatements in interface NodeWithStatements<SwitchEntry>

    • setLabels

      public SwitchEntry setLabels(NodeList<Expression> labels)
      Sets the label
      Parameters:
      labels - the label, can be null
      Returns:
      this, the SwitchEntry

    • setStatements

      public SwitchEntry setStatements(NodeList<Statement> statements)
      Specified by:
      setStatements in interface NodeWithStatements<SwitchEntry>

    • remove

      public boolean remove(Node node)
      Overrides:
      remove in class Node

    • clone

      public SwitchEntry clone()
      Overrides:
      clone in class Node

    • getMetaModel

      public SwitchEntryMetaModel getMetaModel()
      Overrides:
      getMetaModel in class Node
      Returns:
      get JavaParser specific node introspection information.

    • getType

      public SwitchEntry.Type getType()

    • setType

      public SwitchEntry setType(SwitchEntry.Type type)

    • replace

      public boolean replace(Node node, Node replacementNode)
      Overrides:
      replace in class Node

    • isDefault

      public boolean isDefault()

    • setDefault

      public SwitchEntry setDefault(boolean isDefault)

    • getGuard

      public Optional<Expression> getGuard()

    • setGuard

      public SwitchEntry setGuard(Expression guard)

    • removeGuard

      public SwitchEntry removeGuard()