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java.lang.Objectuk.ac.starlink.table.AbstractStarTable
uk.ac.starlink.table.RandomStarTable
uk.ac.starlink.table.jdbc.RandomResultSetStarTable
public class RandomResultSetStarTable
StarTable implementation based on a random-access ResultSet
.
Such results sets have a type
of
ResultSet.TYPE_SCROLL_*
and are generally produced from
by using a Statement which has been constructed using corresponding type.
This implementation is thread-safe.
Constructor Summary | |
---|---|
RandomResultSetStarTable(java.sql.ResultSet rset)
Constructor. |
|
RandomResultSetStarTable(StarResultSet srset)
Constructor. |
Method Summary | |
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java.lang.Object |
getCell(long lrow,
int icol)
The AbstractStarTable implementation of this method throws an UnsupportedOperationException, since unless otherwise provided there is no random access. |
java.util.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. |
java.sql.ResultSet |
getResultSet()
Returns the result set on which this table is built. |
java.lang.Object[] |
getRow(long lrow)
The AbstractStarTable implementation of this method constructs a row by repeated invocation of AbstractStarTable.getCell(long, int) . |
long |
getRowCount()
The number of rows in this table. |
Methods inherited from class uk.ac.starlink.table.RandomStarTable |
---|
getRowSequence, isRandom |
Methods inherited from class uk.ac.starlink.table.AbstractStarTable |
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checkedLongToInt, getName, getParameterByName, getParameters, getURL, setName, setParameter, setParameters, setURL |
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 RandomResultSetStarTable(java.sql.ResultSet rset) throws java.sql.SQLException
rset
- result set containing data
java.lang.IllegalArgumentException
- if rset
is not
random access
java.sql.SQLException
public RandomResultSetStarTable(StarResultSet srset)
srset
- result set containing data
java.lang.IllegalArgumentException
- if srset
is not
random accessMethod Detail |
---|
public java.sql.ResultSet getResultSet()
public int getColumnCount()
StarTable
getColumnCount
in interface StarTable
getColumnCount
in class AbstractStarTable
public ColumnInfo getColumnInfo(int icol)
StarTable
getColumnInfo
in interface StarTable
getColumnInfo
in class AbstractStarTable
icol
- the column for which header information is required
public long getRowCount()
RandomStarTable
getRowCount
in interface StarTable
getRowCount
in class RandomStarTable
public java.util.List<ValueInfo> getColumnAuxDataInfos()
AbstractStarTable
getColumnAuxDataInfos
in interface StarTable
getColumnAuxDataInfos
in class AbstractStarTable
ColumnInfo.getAuxData()
public java.lang.Object getCell(long lrow, int icol) throws java.io.IOException
AbstractStarTable
getCell
in interface StarTable
getCell
in class AbstractStarTable
lrow
- the index of the cell's rowicol
- the index of the cell's column
java.io.IOException
- if there is an error reading the datapublic java.lang.Object[] getRow(long lrow) throws java.io.IOException
AbstractStarTable
AbstractStarTable.getCell(long, int)
.
getRow
in interface StarTable
getRow
in class AbstractStarTable
lrow
- the index of the row to retrieve
java.io.IOException
- if there is an error reading the data
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