Module jdk.compiler

Package com.sun.source.tree

Interface CaseTree

All Superinterfaces:

Tree

public interface CaseTree
extends Tree

A tree node for a case in a switch statement or expression. For example:

   case expression :
       statements

   default :
       statements
 

See Java Language Specification:

14.11 The switch Statement

Since:

1.6

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static enum	CaseTree.CaseKind	The syntactic form of this case: STATEMENT: case <expression>: <statements> RULE: case <expression> -> <expression>/<statement>

Nested classes/interfaces declared in interface com.sun.source.tree.Tree

Tree.Kind

Method Summary

Modifier and Type	Method	Description
default Tree	getBody()	For case with kind CaseTree.CaseKind.RULE, returns the statement or expression after the arrow.
default CaseTree.CaseKind	getCaseKind()	Returns the kind of this case.
ExpressionTree	getExpression()	Deprecated. Please use getExpressions().
List<? extends ExpressionTree>	getExpressions()	Returns the labels for this case.
List<? extends CaseLabelTreePREVIEW>	getLabels()	Preview. Returns the labels for this case.
List<? extends StatementTree>	getStatements()	For case with kind CaseTree.CaseKind.STATEMENT, returns the statements labeled by the case.

Methods declared in interface com.sun.source.tree.Tree

accept, getKind

Method Details

getExpression

@Deprecated
ExpressionTree getExpression()

Deprecated.

Please use getExpressions().

Returns the expression for the case, or null if this is the default case. If this case has multiple labels, returns the first label.

Returns:

the expression for the case, or null

getExpressions

List<? extends ExpressionTree> getExpressions()

Returns the labels for this case. For default case, returns an empty list.

Returns:

labels for this case

Since:

12

getLabels

List<? extends CaseLabelTreePREVIEW> getLabels()

getLabels is a reflective preview API of the Java platform.

Preview features may be removed in a future release, or upgraded to permanent features of the Java platform.

Returns the labels for this case. For default case return a list with a single element, DefaultCaseLabelTree^PREVIEW.

Returns:

labels for this case

Since:

17

getStatements

List<? extends StatementTree> getStatements()

For case with kind CaseTree.CaseKind.STATEMENT, returns the statements labeled by the case. Returns null for case with kind CaseTree.CaseKind.RULE.

Returns:

the statements labeled by the case or null

getBody

default Tree getBody()

For case with kind CaseTree.CaseKind.RULE, returns the statement or expression after the arrow. Returns null for case with kind CaseTree.CaseKind.STATEMENT.

Returns:

case value or null

Since:

12

getCaseKind

default CaseTree.CaseKind getCaseKind()

Returns the kind of this case.

Returns:

the kind of this case

Since:

12