public class ByteStoreRowStore extends java.lang.Object implements RowStore
ByteStore
implementation used.Constructor and Description |
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ByteStoreRowStore(ByteStore byteStore)
Constructor.
|
Modifier and Type | Method and Description |
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void |
acceptMetadata(StarTable meta)
Takes delivery of a row-less
StarTable object which defines
the metadata of the table to be transmitted. |
void |
acceptRow(java.lang.Object[] row)
Takes delivery of one row of data.
|
void |
endRows()
Signals that there are no more rows to be transmitted.
|
ByteStore |
getByteStore()
Returns the underlying storage for this row store.
|
StarTable |
getStarTable()
Obtains a StarTable which contains the data and metadata that have
been written into this sink.
|
public ByteStoreRowStore(ByteStore byteStore)
byteStore
- storage container used by this row storepublic ByteStore getByteStore()
public void acceptMetadata(StarTable meta) throws TableFormatException
TableSink
StarTable
object which defines
the metadata of the table to be transmitted.
If the number of rows that will be transmitted via subsequent
calls to acceptRow
is known, this value should be made
available as the row count of meta
(StarTable.getRowCount()
); if it is not known, the row count
should be -1. However, this object should not attempt to read
any of meta
's cell data.
The data to be transmitted in subsequent calls of acceptRow
must match the metadata transmitted in this call in the same way
that rows of a StarTable must match its own metadata (number and
content clases of columns etc).
If this sink cannot dispose of a table corresponding to meta
then it may throw a TableFormatException - this may be the case
if for instance meta
has columns with types that this
sink can't deal with.
acceptMetadata
in interface TableSink
meta
- table metadata objectTableFormatException
- if this sink cannot accept table rows
matching the given metadatapublic void acceptRow(java.lang.Object[] row) throws java.io.IOException
TableSink
row
is an array of
objects comprising the contents of one row of the table being
transmitted. The number and classes of the elements of row
are described by the metadata object previously accepted.public void endRows() throws java.io.IOException
TableSink
public StarTable getStarTable()
RowStore
TableSink.endRows()
; failing to observe this sequence may
earn you an IllegalStateException
getStarTable
in interface RowStore