Package io.pebbletemplates.pebble.utils

Class OperatorUtils

java.lang.Object

io.pebbletemplates.pebble.utils.OperatorUtils

public class OperatorUtils
extends Object

This class acts as a sort of wrapper around Java's built in operators. This is necessary because Pebble treats all user provided variables as Objects even if they were originally primitives.

It's important that this class mimics the natural type conversion that Java will apply when performing operators. This can be found in section 5.6.2 of the Java 7 spec, under Binary Numeric Promotion.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static enum	OperatorUtils.Comparison
private static enum	OperatorUtils.Operation

Constructor Summary

Constructors

Constructor	Description
OperatorUtils()

Method Summary

Modifier and Type	Method	Description
static Object	add(Object op1, Object op2)
private static Object	addToList(List<?> op1, Object op2)	Deprecated.
private static BigDecimal	bigDecimalOperation(BigDecimal op1, BigDecimal op2, OperatorUtils.Operation operation)
private static <T extends Enum<T>> boolean	compareEnum(Enum<T> enumVariable, String compareToString)
private static Object	concatenateStrings(String op1, String op2)
static Object	divide(Object op1, Object op2)
private static boolean	doubleComparison(double op1, double op2, OperatorUtils.Comparison comparison)
private static double	doubleOperation(double op1, double op2, OperatorUtils.Operation operation)
static boolean	equals(Object op1, Object op2)
private static Float	floatOperation(Float op1, Float op2, OperatorUtils.Operation operation)
static boolean	gt(Object op1, Object op2)
static boolean	gte(Object op1, Object op2)
private static long	integerOperation(int op1, int op2, OperatorUtils.Operation operation)
private static long	longOperation(long op1, long op2, OperatorUtils.Operation operation)
static boolean	lt(Object op1, Object op2)
static boolean	lte(Object op1, Object op2)
static Object	mod(Object op1, Object op2)
static Object	multiply(Object op1, Object op2)
static Object	subtract(Object op1, Object op2)
private static Object	subtractFromList(List<?> op1, Object op2)	Deprecated.
static Object	unaryMinus(Object op1)
static Object	unaryPlus(Object op1)
private static boolean	wideningConversionBinaryComparison(Object op1, Object op2, OperatorUtils.Comparison comparison)
private static Object	wideningConversionBinaryOperation(Object op1, Object op2, OperatorUtils.Operation operation)

Methods inherited from class java.lang.Object

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

Constructor Details

OperatorUtils

public OperatorUtils()

Method Details

add

public static Object add(Object op1,
 Object op2)

subtract

public static Object subtract(Object op1,
 Object op2)

multiply

public static Object multiply(Object op1,
 Object op2)

divide

public static Object divide(Object op1,
 Object op2)

mod

public static Object mod(Object op1,
 Object op2)

equals

public static boolean equals(Object op1,
 Object op2)

compareEnum

private static <T extends Enum<T>> boolean compareEnum(Enum<T> enumVariable,
 String compareToString)

gt

public static boolean gt(Object op1,
 Object op2)

gte

public static boolean gte(Object op1,
 Object op2)

lt

public static boolean lt(Object op1,
 Object op2)

lte

public static boolean lte(Object op1,
 Object op2)

unaryPlus

public static Object unaryPlus(Object op1)

unaryMinus

public static Object unaryMinus(Object op1)

concatenateStrings

private static Object concatenateStrings(String op1,
 String op2)

addToList

@Deprecated
private static Object addToList(List<?> op1,
 Object op2)

Deprecated.

This is not a documented feature but we are leaving this in for now. I'm unsure if there is demand for this feature.

subtractFromList

@Deprecated
private static Object subtractFromList(List<?> op1,
 Object op2)

Deprecated.

This is not a documented feature but we are leaving this in for now. I'm unsure if there is demand for this feature.

wideningConversionBinaryOperation

private static Object wideningConversionBinaryOperation(Object op1,
 Object op2,
 OperatorUtils.Operation operation)

wideningConversionBinaryComparison

private static boolean wideningConversionBinaryComparison(Object op1,
 Object op2,
 OperatorUtils.Comparison comparison)

doubleOperation

private static double doubleOperation(double op1,
 double op2,
 OperatorUtils.Operation operation)

doubleComparison

private static boolean doubleComparison(double op1,
 double op2,
 OperatorUtils.Comparison comparison)

bigDecimalOperation

private static BigDecimal bigDecimalOperation(BigDecimal op1,
 BigDecimal op2,
 OperatorUtils.Operation operation)

floatOperation

private static Float floatOperation(Float op1,
 Float op2,
 OperatorUtils.Operation operation)

longOperation

private static long longOperation(long op1,
 long op2,
 OperatorUtils.Operation operation)

integerOperation

private static long integerOperation(int op1,
 int op2,
 OperatorUtils.Operation operation)