Java Code Examples for java.math.BigDecimal#byteValueExact()
The following examples show how to use
java.math.BigDecimal#byteValueExact() .
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Example 1
| Source File: PTinyint.java From phoenix with Apache License 2.0 | 6 votes |
|
@Override
public Byte toObject(byte[] b, int o, int l, PDataType actualType, SortOrder sortOrder,
Integer maxLength, Integer scale) {
if (l == 0) {
return null;
}
if (equalsAny(actualType, PDouble.INSTANCE, PUnsignedDouble.INSTANCE, PFloat.INSTANCE,
PUnsignedFloat.INSTANCE, PLong.INSTANCE, PUnsignedLong.INSTANCE, PInteger.INSTANCE,
PUnsignedInt.INSTANCE, PSmallint.INSTANCE, PUnsignedSmallint.INSTANCE, PTinyint.INSTANCE,
PUnsignedTinyint.INSTANCE)) {
return actualType.getCodec().decodeByte(b, o, sortOrder);
} else if (actualType == PDecimal.INSTANCE) {
BigDecimal bd = (BigDecimal) actualType.toObject(b, o, l, actualType, sortOrder);
return bd.byteValueExact();
}
throwConstraintViolationException(actualType, this);
return null;
}
Example 2
| Source File: PTinyint.java From phoenix with Apache License 2.0 | 6 votes |
|
@Override
public Byte toObject(byte[] b, int o, int l, PDataType actualType, SortOrder sortOrder,
Integer maxLength, Integer scale) {
if (l == 0) {
return null;
}
if (equalsAny(actualType, PDouble.INSTANCE, PUnsignedDouble.INSTANCE, PFloat.INSTANCE,
PUnsignedFloat.INSTANCE, PLong.INSTANCE, PUnsignedLong.INSTANCE, PInteger.INSTANCE,
PUnsignedInt.INSTANCE, PSmallint.INSTANCE, PUnsignedSmallint.INSTANCE, PTinyint.INSTANCE,
PUnsignedTinyint.INSTANCE)) {
return actualType.getCodec().decodeByte(b, o, sortOrder);
} else if (actualType == PDecimal.INSTANCE) {
BigDecimal bd = (BigDecimal) actualType.toObject(b, o, l, actualType, sortOrder);
return bd.byteValueExact();
}
throwConstraintViolationException(actualType, this);
return null;
}
Example 3
| Source File: TypeUtils.java From grpc-nebula-java with Apache License 2.0 | 5 votes |
|
public static byte byteValue(BigDecimal decimal) {
if (decimal == null) {
return 0;
}
int scale = decimal.scale();
if (scale >= -100 && scale <= 100) {
return decimal.byteValue();
}
return decimal.byteValueExact();
}
Example 4
| Source File: TypeUtils.java From uavstack with Apache License 2.0 | 5 votes |
|
public static byte byteValue(BigDecimal decimal) {
if (decimal == null) {
return 0;
}
int scale = decimal.scale();
if (scale >= -100 && scale <= 100) {
return decimal.byteValue();
}
return decimal.byteValueExact();
}
Example 5
| Source File: BigDecimalTest.java From nuls with MIT License | 4 votes |
|
@View
public String cal1() {
/**
* 构造函数测试
*/
BigDecimal _int = new BigDecimal(19);
BigDecimal _double = new BigDecimal(4.56D);
BigDecimal _long = new BigDecimal(5634345L);
BigDecimal _String = new BigDecimal("1000022");
/**
* 基本方法
*/
BigDecimal amount = BigDecimal.TEN;
BigDecimal fee = BigDecimal.ONE;
BigDecimal add = amount.add(fee);
BigDecimal subtract = amount.subtract(fee);
BigDecimal multiply = amount.multiply(fee);
BigDecimal divisor = new BigDecimal("4.5678");
/**
* 保留3位小数，且四舍五入
* ROUND_CEILING 向正无穷方向舍入
* ROUND_DOWN 向零方向舍入
* ROUND_FLOOR 向负无穷方向舍入
* ROUND_HALF_DOWN 向（距离）最近的一边舍入，除非两边（的距离）是相等,如果是这样，向下舍入, 例如1.55 保留一位小数结果为1.5
* ROUND_HALF_EVEN 向（距离）最近的一边舍入，除非两边（的距离）是相等,如果是这样，如果保留位数是奇数，使用ROUND_HALF_UP，如果是偶数，使用ROUND_HALF_DOWN
* ROUND_HALF_UP 向（距离）最近的一边舍入，除非两边（的距离）是相等,如果是这样，向上舍入, 1.55保留一位小数结果为1.6
* ROUND_UNNECESSARY 计算结果是精确的，不需要舍入模式
* ROUND_UP 向远离0的方向舍入
*/
BigDecimal result = amount.divide(divisor, 3, BigDecimal.ROUND_HALF_UP);
/**
* 普通方法
*/
String _toString = amount.toString();
Double _doubleValue = amount.doubleValue();
Float _floatValue = amount.floatValue();
Long _longValue = amount.longValue();
Integer _intValue = amount.intValue();
StringBuilder sb = new StringBuilder();
/**
* 科学计数法问题
*/
BigDecimal hex = new BigDecimal("192320012000000000000000");
hex.byteValueExact();
// hex.plus();
BigDecimal pow = hex.pow(6);
sb.append("\npow: " + pow.toString() + " ==== " + pow.toPlainString());
String hex2 = hex.toString();
String plain = hex.toPlainString();
sb.append("\nmovePointRight9: " + pow.movePointRight(9));
sb.append("\nmovePointLeft9: " + pow.movePointLeft(9));
sb.append("\nsetScale3: " + divisor.setScale(3));
sb.append("\nsetScale3_ROUND_HALF_DOWN: " + divisor.setScale(3, BigDecimal.ROUND_HALF_DOWN));
sb.append("\nsetScale3_ROUND_HALF_DOWN: " + divisor);
return sb.toString();
}
Example 6
| Source File: ByteCellConverterFactory.java From xlsmapper with Apache License 2.0 | 4 votes |
|
@Override
protected Byte convertTypeValue(final BigDecimal value) throws NumberFormatException, ArithmeticException {
// 少数以下を四捨五入
BigDecimal decimal = value.setScale(0, RoundingMode.HALF_UP);
return decimal.byteValueExact();
}
Example 7
| Source File: SimpleNumberFormatter.java From super-csv-annotation with Apache License 2.0 | 3 votes |
|
private Number parseFromBigDecimal(final Class<? extends Number> type, final BigDecimal number) {
if(Byte.class.isAssignableFrom(type) || byte.class.isAssignableFrom(type)) {
return lenient ? number.byteValue() : number.byteValueExact();
} else if(Short.class.isAssignableFrom(type) || short.class.isAssignableFrom(type)) {
return lenient ? number.shortValue() : number.shortValueExact();
} else if(Integer.class.isAssignableFrom(type) || int.class.isAssignableFrom(type)) {
return lenient ? number.intValue() : number.intValueExact();
} else if(Long.class.isAssignableFrom(type) || long.class.isAssignableFrom(type)) {
return lenient ? number.longValue() : number.longValueExact();
} else if(Float.class.isAssignableFrom(type) || float.class.isAssignableFrom(type)) {
return number.floatValue();
} else if(Double.class.isAssignableFrom(type) || double.class.isAssignableFrom(type)) {
return number.doubleValue();
} else if(type.isAssignableFrom(BigInteger.class)) {
return lenient ? number.toBigInteger() : number.toBigIntegerExact();
} else if(type.isAssignableFrom(BigDecimal.class)) {
return number;
}
throw new IllegalArgumentException(String.format("Not support class type : %s", type.getCanonicalName()));
}
Example 8
| Source File: NumberFormatWrapper.java From super-csv-annotation with Apache License 2.0 | 3 votes |
|
private Number convertWithBigDecimal(final Class<? extends Number> type, final BigDecimal number, final String str) {
if(Byte.class.isAssignableFrom(type) || byte.class.isAssignableFrom(type)) {
return lenient ? number.byteValue() : number.byteValueExact();
} else if(Short.class.isAssignableFrom(type) || short.class.isAssignableFrom(type)) {
return lenient ? number.shortValue() : number.shortValueExact();
} else if(Integer.class.isAssignableFrom(type) || int.class.isAssignableFrom(type)) {
return lenient ? number.intValue() : number.intValueExact();
} else if(Long.class.isAssignableFrom(type) || long.class.isAssignableFrom(type)) {
return lenient ? number.longValue() : number.longValueExact();
} else if(Float.class.isAssignableFrom(type) || float.class.isAssignableFrom(type)) {
return number.floatValue();
} else if(Double.class.isAssignableFrom(type) || double.class.isAssignableFrom(type)) {
return number.doubleValue();
} else if(type.isAssignableFrom(BigInteger.class)) {
return lenient ? number.toBigInteger() : number.toBigIntegerExact();
} else if(type.isAssignableFrom(BigDecimal.class)) {
return number;
}
throw new IllegalArgumentException(String.format("not support class type : %s", type.getCanonicalName()));
}
