com.alibaba.qlexpress4.runtime.operator.compare

Class EqualOperator

java.lang.Object

com.alibaba.qlexpress4.runtime.operator.base.BaseBinaryOperator

com.alibaba.qlexpress4.runtime.operator.compare.EqualOperator

All Implemented Interfaces:

BinaryOperator, Operator

public class EqualOperator
extends BaseBinaryOperator

Author:

bingo

Method Summary

Modifier and Type	Method and Description
java.lang.Object	execute(Value left, Value right, QRuntime qRuntime, QLOptions qlOptions, ErrorReporter errorReporter) 执行操作符计算
static EqualOperator	getInstance()
java.lang.String	getOperator()
int	getPriority()

Methods inherited from class com.alibaba.qlexpress4.runtime.operator.base.BaseBinaryOperator

assertLeftValue, bitwiseAnd, bitwiseOr, bitwiseXor, buildInvalidOperandTypeException, char2Number, compare, divide, equals, in, isBooleanAndNull, isBothBoolean, isBothNumber, isBothNumberOrChar, isInstanceofComparable, isNumber, isNumberCharacter, isSameType, leftShift, like, minus, multiply, plus, remainder, rightShift, rightShiftUnsigned

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static EqualOperator getInstance()

getOperator

public java.lang.String getOperator()

Returns:

操作符

getPriority

public int getPriority()

Returns:

操作符优先级

execute

public java.lang.Object execute(Value left,
                                Value right,
                                QRuntime qRuntime,
                                QLOptions qlOptions,
                                ErrorReporter errorReporter)

Description copied from interface: BinaryOperator

执行操作符计算

Parameters:

left - left operand

right - right operand

qRuntime - runtime of qlexpress

qlOptions - options of current script run

errorReporter - error reporter

Returns:

result of operator