public abstract class LogicalFunction extends Fixed1ArgFunction implements ArrayFunction
Modifier and Type | Field and Description |
---|---|
static Function |
ISBLANK |
static Function |
ISERR
Implementation of Excel
ISERR() function.
(Excel ISERR() 函数的实现。)
|
static Function |
ISERROR |
static Function |
ISLOGICAL |
static Function |
ISNA
Implementation for Excel ISNA() function.
(Excel ISNA() 函数的实现。)
|
static Function |
ISNONTEXT |
static Function |
ISNUMBER |
static Function |
ISREF |
static Function |
ISTEXT |
Constructor and Description |
---|
LogicalFunction() |
Modifier and Type | Method and Description |
---|---|
ValueEval |
evaluate(int srcRowIndex, int srcColumnIndex, ValueEval arg0)
see
Function.evaluate(ValueEval[], int, int)
(见 Function.evaluate(ValueEval[], int, int))
|
protected abstract boolean |
evaluate(ValueEval arg) |
ValueEval |
evaluateArray(ValueEval[] args, int srcRowIndex, int srcColumnIndex) |
evaluate
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
evaluateOneArrayArg, evaluateTwoArrayArgs
public static final Function ISLOGICAL
public static final Function ISNONTEXT
public static final Function ISNUMBER
public static final Function ISTEXT
public static final Function ISBLANK
public static final Function ISERROR
public static final Function ISERR
Syntax:
ISERR(value)
value The value to be tested
Returns the logical value TRUE if value refers to any error value except '#N/A'; otherwise, it returns FALSE.
(Excel ISERR() 函数的实现。语法:ISERR(value) value 要测试的值 如果 value 引用除 '#N/A' 之外的任何错误值,则返回逻辑值 TRUE;否则,它返回 FALSE。)public static final Function ISNA
Syntax:
ISNA(value)
value The value to be tested
Returns TRUE if the specified value is '#N/A', FALSE otherwise.
public static final Function ISREF
public ValueEval evaluate(int srcRowIndex, int srcColumnIndex, ValueEval arg0)
Function1Arg
Function.evaluate(ValueEval[], int, int)
(见 Function.evaluate(ValueEval[], int, int))
evaluate
in interface
Function1Arg
(在接口 Function1Arg 中评估)
public ValueEval evaluateArray(ValueEval[] args, int srcRowIndex, int srcColumnIndex)
evaluateArray
in interface
ArrayFunction
(接口 ArrayFunction 中的 evaluateArray)
args
- the evaluated function arguments. Empty values are represented with
BlankEval
or
MissingArgEval
, never
null
.
(args - 评估的函数参数。空值用 BlankEval 或 MissingArgEval 表示,绝不为 null。)
srcRowIndex
- row index of the cell containing the formula under evaluation
(srcRowIndex - 包含计算公式的单元格的行索引)
srcColumnIndex
- column index of the cell containing the formula under evaluation
(srcColumnIndex - 包含正在评估的公式的单元格的列索引)
ErrorEval
, never
null
.
Note - Excel uses the error code
#NUM! instead of IEEE
NaN, so when numeric functions evaluate to
Double.NaN
be sure to translate the result to
ErrorEval.NUM_ERROR
.
(评估结果,可能是 ErrorEval,绝不为空。注意 - Excel 使用错误代码 #NUM!而不是 IEEE NaN,因此当数值函数计算为 Double.NaN 时,请务必将结果转换为 ErrorEval.NUM_ERROR。)
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