## org.springframework.expression.spel.ast
Class OperatorInstanceof

    java.lang.Object
      org.springframework.expression.spel.ast.SpelNodeImpl
          org.springframework.expression.spel.ast.Operator
              org.springframework.expression.spel.ast.OperatorInstanceof

All Implemented Interfaces:
  SpelNode

    public class OperatorInstanceof

extends Operator

The operator 'instanceof' checks if an object is of the class specified in the right hand operand, in the same way that `instanceof` does in Java.

Since:
  3.0
Author:
  Andy Clement

Field Summary

Fields inherited from class org.springframework.expression.spel.ast.SpelNodeImpl
`children, pos`

Constructor Summary
`OperatorInstanceof(int pos, SpelNodeImpl... operands)`

Method Summary
`BooleanTypedValue` `getValueInternal(ExpressionState state)` Compare the left operand to see it is an instance of the type specified as the right operand.

Methods inherited from class org.springframework.expression.spel.ast.Operator
`getLeftOperand, getOperatorName, getRightOperand, toStringAST`

Methods inherited from class org.springframework.expression.spel.ast.SpelNodeImpl
`getChild, getChildCount, getEndPosition, getObjectClass, getPreviousChild, getStartPosition, getTypedValue, getValue, getValue, isWritable, nextChildIs, setValue`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### OperatorInstanceof

    public OperatorInstanceof(int pos,
                              SpelNodeImpl... operands)

Method Detail

### getValueInternal

    public BooleanTypedValue getValueInternal(ExpressionState state)
                                       throws EvaluationException

  Compare the left operand to see it is an instance of the type specified as the right operand. The right operand must be a class.

  Specified by:
    `getValueInternal` in class `SpelNodeImpl`
  Parameters:
    `state` - the expression state
  Returns:
    true if the left operand is an instanceof of the right operand, otherwise false
  Throws:
    `EvaluationException` - if there is a problem evaluating the expression