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/OpenJDK 25

Interface InstanceOfTree

All Superinterfaces:
ExpressionTree, Tree
public interface InstanceOfTree extends ExpressionTree
A tree node for an instanceof expression. For example: 
  expression instanceof type

  expression instanceof pattern
See Java Language Specification:
15.20.2 The instanceof Operator
Since:
1.6

Nested Class Summary

Nested classes/interfaces declared in interface Tree

Tree.Kind

Method Summary

Modifier and Type Method Description
ExpressionTree getExpression()
Returns the expression to be tested.
PatternTree getPattern()
Returns the tested pattern, or null if this instanceof does not use a pattern.
Tree getType()
Returns the type for which to check, or null if this instanceof uses a pattern other the BindingPatternTree.

Methods declared in interface Tree

accept, getKind

Method Details

getExpression

ExpressionTree getExpression()
Returns the expression to be tested.
Returns:
the expression

getType

Tree getType()
Returns the type for which to check, or null if this instanceof uses a pattern other the BindingPatternTree.

For instanceof without a pattern, i.e. in the following form: 

  expression instanceof type
returns the type.

For instanceof with a BindingPatternTree, i.e. in the following form: 

  expression instanceof type variable_name
returns the type.

For instanceof with a pattern, i.e. in the following form: 

  expression instanceof pattern
returns null.
Returns:
the type or null if this instanceof uses a pattern other than the BindingPatternTree
See Also:

getPattern

PatternTree getPattern()
Returns the tested pattern, or null if this instanceof does not use a pattern.

For instanceof with a pattern, i.e. in the following form: 

  expression instanceof pattern
returns the pattern.

For instanceof without a pattern, i.e. in the following form: 

  expression instanceof type
returns null.
Returns:
the tested pattern, or null if this instanceof does not use a pattern
Since:
16

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https://docs.oracle.com/en/java/javase/25/docs/api/jdk.compiler/com/sun/source/tree/InstanceOfTree.html