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java.lang.Objectuk.ac.starlink.table.ColumnData
uk.ac.starlink.table.WrapperColumn
uk.ac.starlink.table.EditableColumn
A column which can be initialised from a given existing column, but whose cells can be written to. Whether the initialisation is done by copying the whole lot and creating a new column or by just keeping track of the changed elements is unspecified and down to the implementation. Modifications to the cell data or the metadata of this column will not affect the data/metadata of the base column.
Constructor Summary | |
EditableColumn(ColumnData base)
Constructs a new EditableColumn based on an existing column. |
Method Summary | |
boolean |
isWritable()
Returns true. |
Object |
readValue(long irow)
Returns the value stored at a given row in this column. |
void |
storeValue(long irow,
Object value)
Stores a given value in a given row for this column. |
Methods inherited from class uk.ac.starlink.table.WrapperColumn |
getBaseColumn |
Methods inherited from class uk.ac.starlink.table.ColumnData |
getColumnInfo, setColumnInfo |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public EditableColumn(ColumnData base)
Method Detail |
public boolean isWritable()
isWritable
in class WrapperColumn
public Object readValue(long irow) throws IOException
ColumnData
readValue
in class WrapperColumn
IOException
public void storeValue(long irow, Object value) throws IOException
ColumnData
storeValue
in class WrapperColumn
IOException
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Copyright © 2004 CLRC: Central Laboratory of the Research Councils. All rights reserved. | |||||||||
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