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java.lang.Objectorg.apache.derby.iapi.types.DataTypeUtilities
public abstract class DataTypeUtilities
A set of static utility methods for data types.
Constructor Summary | |
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DataTypeUtilities()
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Method Summary | |
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static int |
computeMaxWidth(int precision,
int scale)
Compute the maximum width (column display width) of a decimal or numeric data value, given its precision and scale. |
static int |
getColumnDisplaySize(DataTypeDescriptor dtd)
Gets the display width of a column of a given type. |
static int |
getColumnDisplaySize(int typeId,
int storageLength)
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static int |
getDigitPrecision(DataTypeDescriptor dtd)
Get the precision of the datatype, in decimal digits This is used by EmbedResultSetMetaData. |
static int |
getPrecision(DataTypeDescriptor dtd)
Get the precision of the datatype. |
static boolean |
isCaseSensitive(DataTypeDescriptor dtd)
Is the data type case sensitive. |
static boolean |
isCurrency(DataTypeDescriptor dtd)
Is the data type currency. |
static int |
isNullable(DataTypeDescriptor dtd)
Is the data type nullable. |
static boolean |
isSigned(DataTypeDescriptor dtd)
Is the data type signed. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public DataTypeUtilities()
Method Detail |
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public static int getPrecision(DataTypeDescriptor dtd)
dtd
- data type descriptorpublic static int getDigitPrecision(DataTypeDescriptor dtd)
dtd
- data type descriptorpublic static boolean isCurrency(DataTypeDescriptor dtd)
dtd
- data type descriptorpublic static boolean isCaseSensitive(DataTypeDescriptor dtd)
dtd
- data type descriptorpublic static int isNullable(DataTypeDescriptor dtd)
dtd
- data type descriptorpublic static boolean isSigned(DataTypeDescriptor dtd)
dtd
- data type descriptorpublic static int getColumnDisplaySize(DataTypeDescriptor dtd)
dtd
- data type descriptor
public static int getColumnDisplaySize(int typeId, int storageLength)
public static int computeMaxWidth(int precision, int scale)
precision
- The precision (number of digits) of the data value.scale
- The number of fractional digits (digits to the right of the decimal point).
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Built on Thu 2012-03-29 21:53:33+0000, from revision ??? | ||||||||
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