org.zkoss.math
Class BigDecimals

java.lang.Object
  extended by org.zkoss.math.BigDecimals

public class BigDecimals
extends java.lang.Object

Utilities and constants of big decimals.

Author:
tomyeh

Field Summary
static int FINE_NUMBER_PRECISION
          Represents our fine number precision.
static int FINE_NUMBER_SCALE
          Represents our fine number scale.
static java.math.BigDecimal MINUS_ONE
          Represents -1 in big decimal.
static int NUMBER_PRECISION
          Represents our number precision.
static int NUMBER_SCALE
          Represents our number scale.
static java.math.BigDecimal ONE
          Represents 1 in big decimal.
static java.math.BigDecimal ZERO
          Represents 0 in big decimal.
 
Constructor Summary
BigDecimals()
           
 
Method Summary
static java.math.BigDecimal toBigDecimal(byte v)
          Converts a byte to a big decimal with a scale without.
static java.math.BigDecimal toBigDecimal(java.lang.Byte v)
          Converts a byte to a big decimal with a scale without.
static java.math.BigDecimal toBigDecimal(double v, int scale)
          Converts a double to a big decimal with a scale.
static java.math.BigDecimal toBigDecimal(double v, int scale, int roundingMode)
          Converts a double to a big decimal with a scale.
static java.math.BigDecimal toBigDecimal(int v)
          Converts an integer to a big decimal with a scale without.
static java.math.BigDecimal toBigDecimal(java.lang.Integer v)
          Converts an integer to a big decimal with a scale without.
static java.math.BigDecimal toBigDecimal(int v, int scale)
          Converts an integer to a big decimal with a scale.
static java.math.BigDecimal toBigDecimal(long v)
          Converts a long to a big decimal with a scale without.
static java.math.BigDecimal toBigDecimal(java.lang.Long v)
          Converts a long to a big decimal with a scale without.
static java.math.BigDecimal toBigDecimal(long v, int scale)
          Converts an integer to a big decimal with a scale.
static java.math.BigDecimal toBigDecimal(short v)
          Converts a short to a big decimal with a scale without.
static java.math.BigDecimal toBigDecimal(java.lang.Short v)
          Converts a short to a big decimal with a scale without.
static java.lang.String toLocaleString(java.math.BigDecimal bd, java.util.Locale locale)
          Return a string representation of this BigDecimal without an exponent field, which respects the given locale.
static java.lang.String toPlainString(java.math.BigDecimal bd)
          Deprecated. As of release 6.0.0, use BigDecimal.toPlainString() directly (since we don't support JDK 1.4) anymore.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

ZERO

public static final java.math.BigDecimal ZERO
Represents 0 in big decimal.

See Also:
ONE, MINUS_ONE

ONE

public static final java.math.BigDecimal ONE
Represents 1 in big decimal.

See Also:
ZERO, MINUS_ONE

MINUS_ONE

public static final java.math.BigDecimal MINUS_ONE
Represents -1 in big decimal.

See Also:
ZERO, ONE

NUMBER_PRECISION

public static final int NUMBER_PRECISION
Represents our number precision.

See Also:
Constant Field Values

NUMBER_SCALE

public static final int NUMBER_SCALE
Represents our number scale.

See Also:
Constant Field Values

FINE_NUMBER_PRECISION

public static final int FINE_NUMBER_PRECISION
Represents our fine number precision.

See Also:
Constant Field Values

FINE_NUMBER_SCALE

public static final int FINE_NUMBER_SCALE
Represents our fine number scale.

See Also:
Constant Field Values
Constructor Detail

BigDecimals

public BigDecimals()
Method Detail

toBigDecimal

public static final java.math.BigDecimal toBigDecimal(double v,
                                                      int scale,
                                                      int roundingMode)
Converts a double to a big decimal with a scale.

It is strongly deprecated to use new Decimal(double) since the scale is unpredictable and usually surprising. For example, BigDecimal(.1) will becomes .1000000000000000055511151231257827021181583404541015625. On the other hand, BigDecimal("0.1") will be 0.1 correctly.

Parameters:
scale - the BigDecimal's scale
roundingMode - the rounding mode

toBigDecimal

public static final java.math.BigDecimal toBigDecimal(double v,
                                                      int scale)
Converts a double to a big decimal with a scale. It uses BigDecimal.ROUND_HALF_UP.


toBigDecimal

public static final java.math.BigDecimal toBigDecimal(int v,
                                                      int scale)
Converts an integer to a big decimal with a scale.


toBigDecimal

public static final java.math.BigDecimal toBigDecimal(long v,
                                                      int scale)
Converts an integer to a big decimal with a scale.


toBigDecimal

public static final java.math.BigDecimal toBigDecimal(int v)
Converts an integer to a big decimal with a scale without. losing precision -- zero scale in this case.


toBigDecimal

public static final java.math.BigDecimal toBigDecimal(long v)
Converts a long to a big decimal with a scale without. losing precision -- zero scale in this case.


toBigDecimal

public static final java.math.BigDecimal toBigDecimal(short v)
Converts a short to a big decimal with a scale without. losing precision -- zero scale in this case.


toBigDecimal

public static final java.math.BigDecimal toBigDecimal(byte v)
Converts a byte to a big decimal with a scale without. losing precision -- zero scale in this case.


toBigDecimal

public static final java.math.BigDecimal toBigDecimal(java.lang.Integer v)
Converts an integer to a big decimal with a scale without. losing precision -- zero scale in this case.


toBigDecimal

public static final java.math.BigDecimal toBigDecimal(java.lang.Long v)
Converts a long to a big decimal with a scale without. losing precision -- zero scale in this case.


toBigDecimal

public static final java.math.BigDecimal toBigDecimal(java.lang.Short v)
Converts a short to a big decimal with a scale without. losing precision -- zero scale in this case.


toBigDecimal

public static final java.math.BigDecimal toBigDecimal(java.lang.Byte v)
Converts a byte to a big decimal with a scale without. losing precision -- zero scale in this case.


toPlainString

public static final java.lang.String toPlainString(java.math.BigDecimal bd)
Deprecated. As of release 6.0.0, use BigDecimal.toPlainString() directly (since we don't support JDK 1.4) anymore.


toLocaleString

public static final java.lang.String toLocaleString(java.math.BigDecimal bd,
                                                    java.util.Locale locale)
Return a string representation of this BigDecimal without an exponent field, which respects the given locale.

Parameters:
locale - if null, the current user locale is used.
Since:
5.0.10


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