public class DateColumnImpl extends AbstractColumn<Date> implements Cloneable
DateColumnImpl extends the OneToOneColumnImpl with support
for the Date type and various default or custom date formats.| Constructor and Description |
|---|
DateColumnImpl(String aKey)
Constructor of the
DateColumnImpl with support for the default
SimpleDateFormat instances as defined in the
DateConsts.DEFAULT_DATE_FORMATS. |
DateColumnImpl(String aKey,
SimpleDateFormat[] aDateFormats)
Constructor of the
DateColumnImpl with support for the provided
SimpleDateFormat instances. |
| Modifier and Type | Method and Description |
|---|---|
Object |
clone() |
Date |
fromStorageStrings(String[] aStringValues)
A
Column implementation can provide its own text exchange format
for the given objects. |
String |
toPrintable(Date aValue)
A
Column implementation can provide its own printable format of
the given objects; for example a human readable text representation of
the value (or in very specialized cases even enriched with ANSI escape
codes). |
String[] |
toStorageStrings(Date aValue)
A
Column implementation can provide its own text exchange format
for the given objects. |
contains, fromStorageString, get, getKey, getType, remove, toStorageStringpublic DateColumnImpl(String aKey)
DateColumnImpl with support for the default
SimpleDateFormat instances as defined in the
DateConsts.DEFAULT_DATE_FORMATS. Actually the
ConcurrentDateFormat is used to be thread safe.aKey - The key to be used.public DateColumnImpl(String aKey, SimpleDateFormat[] aDateFormats)
DateColumnImpl with support for the provided
SimpleDateFormat instances. To avoid multi threading problems,
please wrap your SimpleDateFormat instances inside
ConcurrentDateFormat instances, just to be thread safe.aKey - The key to be used.aDateFormats - The SimpleDateFormat instances used for
parsing date strings.public String[] toStorageStrings(Date aValue)
ColumnColumn implementation can provide its own text exchange format
for the given objects. This method enables the Column to convert
a value of the given type to a String array and via
Column.fromStorageStrings(String[]) back to the value (bijective).
This method supports data sinks (such as Amazon's SimpleDb) which provide
dedicated support for multiple values in a row's entry: In case T is an
array type, then the storage String representations of the
elements in that array may be placed in dedicated entries of the returned
String array. In case T is not an array type then the returned
String array may contain just one value.
In case data sinks (such as relational databases) are to be addressed
which allow only a single value in a row's entry, then the method
Column.toStorageString(Object) may be used instead.toStorageStrings in interface Column<Date>aValue - the element to be converted to a String array.String array representation of the value.public Date fromStorageStrings(String[] aStringValues) throws ParseException
ColumnColumn implementation can provide its own text exchange format
for the given objects. This method enables the Column to convert
a String array value to a value of the given type and via
Column.toStorageStrings(Object) back to the String array
(bijective).
This method supports data sinks (such as Amazon's SimpleDb) which provide
dedicated support for multiple values in a row's entry: In case T is an
array type, then the storage String representations of the
elements in that array may be placed in dedicated entries of the provided
String array. In case T is not an array type then the passed
String array may contain just one value.
In case data sinks (such as relational databases) are to be addressed
which allow only a single value in a row's entry, then the method
#fromStorageString(Object) may be used instead.fromStorageStrings in interface Column<Date>aStringValues - The value to be converted to a type instance.ParseException - in case parsing the String was not
possiblepublic String toPrintable(Date aValue)
ColumnColumn implementation can provide its own printable format of
the given objects; for example a human readable text representation of
the value (or in very specialized cases even enriched with ANSI escape
codes). This method enables the Column to convert a value of the
given type to a human readable text. The human readable text, in
comparison to the method #toString() (or
#toStorageFormat(Object)) is not intended to be converted back to
the actual value (not bijective).
This method may be used a Header instance's method
Header.toPrintable(Record).toPrintable in interface Column<Date>toPrintable in class AbstractColumn<Date>aValue - the element to be converted to a human readable text.public Object clone() throws CloneNotSupportedException
clone in class AbstractColumn<Date>CloneNotSupportedExceptionCopyright © 2016. All rights reserved.