org.hkijena.jipipe.extensions.expressions

Class ExpressionOperator

java.lang.Object

com.fathzer.soft.javaluator.Operator

org.hkijena.jipipe.extensions.expressions.ExpressionOperator

Direct Known Subclasses:

ContainsOperator, ContainsOperator2, ElementAccessOperator, GenericOperator, GenericPredicateOperator, LogicalAndOperator, LogicalNotOperator, LogicalOrOperator, LogicalXOrOperator, NumericFunctionOperator, NumericOrStringFunctionOperator, NumericPredicateOperator, PairOperator, ResolveVariableOperator, StatementOperator, VariableExistsOperator

public abstract class ExpressionOperator
extends com.fathzer.soft.javaluator.Operator

Nested Class Summary

Nested classes/interfaces inherited from class com.fathzer.soft.javaluator.Operator

com.fathzer.soft.javaluator.Operator.Associativity

Constructor Summary

Constructors

Constructor and Description
ExpressionOperator(String symbol, int operandCount, com.fathzer.soft.javaluator.Operator.Associativity associativity, int precedence)

Method Summary

Modifier and Type	Method and Description
abstract Object	evaluate(Iterator<Object> operands, ExpressionVariables variables) Evaluates the operator
ParameterInfo	getParameterInfo(int index) Returns info about the parameter at index (left to right)

Methods inherited from class com.fathzer.soft.javaluator.Operator

equals, getAssociativity, getOperandCount, getPrecedence, getSymbol, hashCode

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ExpressionOperator

public ExpressionOperator(String symbol,
                          int operandCount,
                          com.fathzer.soft.javaluator.Operator.Associativity associativity,
                          int precedence)

Method Detail

evaluate

public abstract Object evaluate(Iterator<Object> operands,
                                ExpressionVariables variables)

Evaluates the operator

Parameters:

operands - the operands (contains booleans)

variables - the evaluation context

Returns:

the result (should be a boolean)

getParameterInfo

public ParameterInfo getParameterInfo(int index)

Returns info about the parameter at index (left to right)

Parameters:

index - the parameter index

Returns:

the info