public class SequentialResultSetStarTable extends AbstractStarTable
ResultSet.
It can read through the data once, and no more.
Beware: it therefore breaks the general contract of
StarTable, in that calls of
getRowSequence() after the first one will throw a
UnrepeatableSequenceException.
Only use this class if you know that the table needs to be read once only.
| Constructor and Description |
|---|
SequentialResultSetStarTable(ResultSet rset)
Constructor.
|
SequentialResultSetStarTable(StarResultSet srset)
Constructs from a StarResultSet.
|
| Modifier and Type | Method and Description |
|---|---|
void |
close()
The
AbstractStarTable implementation of this method
does nothing. |
List<ValueInfo> |
getColumnAuxDataInfos()
Goes through the table columns (
ColumnInfo objects)
and picks out all the AuxData items which exist, generalising
where necessary and returning a union of them in
alphabetical order by name. |
int |
getColumnCount()
Returns the number of columns in this table.
|
ColumnInfo |
getColumnInfo(int icol)
Returns the object describing the data in a given column.
|
ResultSet |
getResultSet()
Returns the result set on which this table is built.
|
long |
getRowCount()
Returns the number of rows in this table, if known.
|
RowSequence |
getRowSequence()
The first time it is called, returns an iterator over the rows of the
result set.
|
checkedLongToInt, getCell, getName, getParameters, getRow, getRowAccess, getRowSplittable, getURL, isRandom, setName, setParameters, setURLclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitgetParameterByName, setParameterpublic SequentialResultSetStarTable(ResultSet rset) throws SQLException
rset - result set containing data - should be positioned at startSQLExceptionpublic SequentialResultSetStarTable(StarResultSet srset)
srset - result set containing data - should be positioned at startpublic ResultSet getResultSet()
public int getColumnCount()
StarTablegetColumnCount in interface StarTablegetColumnCount in class AbstractStarTablepublic ColumnInfo getColumnInfo(int icol)
StarTablegetColumnInfo in interface StarTablegetColumnInfo in class AbstractStarTableicol - the column for which header information is requiredicolpublic long getRowCount()
StarTablegetRowCount in interface StarTablegetRowCount in class AbstractStarTablepublic List<ValueInfo> getColumnAuxDataInfos()
AbstractStarTableColumnInfo objects)
and picks out all the AuxData items which exist, generalising
where necessary and returning a union of them in
alphabetical order by name.
Subclasses should override this if they can do better, for instance
providing an order for the keys.getColumnAuxDataInfos in interface StarTablegetColumnAuxDataInfos in class AbstractStarTableValueInfo
items which in fact crop up in column metadataDefaultValueInfo.getAuxData()public RowSequence getRowSequence() throws UnrepeatableSequenceException, IOException
UnrepeatableSequenceException.getRowSequence in interface StarTablegetRowSequence in class AbstractStarTableUnrepeatableSequenceException - if called more than onceIOException - if there is an error providing accesspublic void close()
throws IOException
AbstractStarTableAbstractStarTable implementation of this method
does nothing.close in interface Closeableclose in interface AutoCloseableclose in interface StarTableclose in class AbstractStarTableIOExceptionCopyright © 2024 Central Laboratory of the Research Councils. All Rights Reserved.