com.whitestein.lsps.lang.operation

Interface Operation

All Known Subinterfaces:

ReferencedOperation

All Known Implementing Classes:

BooleanOperation, CollectionOperation, ComparisonOperation, DateOperation, DecimalBinaryArithmeticOperation, DecimalBinaryComparisonOperation, DecimalUnaryOperation, DocumentSignatureGeneration.DocOperation, EnumerationOperation, ErrorOperation, ExpressionOperation, IntegerBinaryArithmeticOperation, IntegerUnaryOperation, JavaOperation, LocalDateOperation, MapOperation, ObjectOperation, RangeOperation, RoleUnitFunctionOperation, StringComparisonOperation, StringLikeOperation, StringOperation

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface Operation

Interface representing executable operation. The operation must know its return type.

Author:

rba

Method Summary

Modifier and Type	Method and Description
Object	execute(Interpreter interpreter, List<Expression> args, boolean variadicArgAsList, InterpreterStackTrace stackTrace) Executes the expression.

Method Detail

execute

Object execute(Interpreter interpreter,
               List<Expression> args,
               boolean variadicArgAsList,
               InterpreterStackTrace stackTrace)
        throws ErrorException

Executes the expression. The operation gets the interpreter and argument expressions instead of getting evaluated arguments. This can be used for late argument evaluation or not evaluating them at all.

Parameters:

interpreter -

args -

variadicArgAsList - if true, the variadic argument is given as expression returning a list; if false, the variadic argument is given as several individual expressions

stackTrace - a stack trace passed to the interpreter

Returns:

the result of the operation

Throws:

ErrorException