本文整理汇总了Java中org.apache.cassandra.config.CFMetaData.partitionColumns方法的典型用法代码示例。如果您正苦于以下问题：Java CFMetaData.partitionColumns方法的具体用法？Java CFMetaData.partitionColumns怎么用？Java CFMetaData.partitionColumns使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.cassandra.config.CFMetaData的用法示例。
在下文中一共展示了CFMetaData.partitionColumns方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: createSSTableWriter
import org.apache.cassandra.config.CFMetaData; //导入方法依赖的package包/类
public static SSTableWriter createSSTableWriter(final Descriptor inputSSTableDescriptor,
final CFMetaData outCfmMetaData,
final SSTableReader inputSSTable) {
final String sstableDirectory = System.getProperty("user.dir") + "/cassandra/compresseddata";
LOGGER.info("Output directory: " + sstableDirectory);
final File outputDirectory = new File(sstableDirectory + File.separatorChar
+ inputSSTableDescriptor.ksname
+ File.separatorChar + inputSSTableDescriptor.cfname);
if (!outputDirectory.exists() && !outputDirectory.mkdirs()) {
throw new FSWriteError(new IOException("failed to create tmp directory"),
outputDirectory.getAbsolutePath());
}
final SSTableFormat.Type sstableFormat = SSTableFormat.Type.BIG;
final BigTableWriter writer = new BigTableWriter(
new Descriptor(
sstableFormat.info.getLatestVersion().getVersion(),
outputDirectory.getAbsolutePath(),
inputSSTableDescriptor.ksname, inputSSTableDescriptor.cfname,
inputSSTableDescriptor.generation,
sstableFormat,
inputSSTableDescriptor.getConfiguration()),
inputSSTable.getTotalRows(), 0L, outCfmMetaData,
new MetadataCollector(outCfmMetaData.comparator)
.sstableLevel(inputSSTable.getSSTableMetadata().sstableLevel),
new SerializationHeader(true,
outCfmMetaData, outCfmMetaData.partitionColumns(),
org.apache.cassandra.db.rows.EncodingStats.NO_STATS));
return writer;
}
示例2: makeWithoutStats
import org.apache.cassandra.config.CFMetaData; //导入方法依赖的package包/类
public static SerializationHeader makeWithoutStats(CFMetaData metadata)
{
return new SerializationHeader(true, metadata, metadata.partitionColumns(), EncodingStats.NO_STATS);
}
示例3: write
import org.apache.cassandra.config.CFMetaData; //导入方法依赖的package包/类
public List<String> write(Iterator<T> data) throws IOException {
SSTableTxnWriter writer = null;
try {
CFMetaData outputCFMetaData = setCFMetadataWithParams(origCFMetaData,
cassTable.getKeyspaceName(),
cassTable.getTableName());
Descriptor outDescriptor = new Descriptor(BigFormat.latestVersion.getVersion(),
outLocation,
cassTable.getKeyspaceName(),
cassTable.getTableName(),
generation++,
SSTableFormat.Type.BIG,
conf);
SerializationHeader header = new SerializationHeader(true,
outputCFMetaData,
outputCFMetaData.partitionColumns(),
EncodingStats.NO_STATS);
//Todo: fix these settings
writer = SSTableTxnWriter.createWithNoLogging(outputCFMetaData, outDescriptor, 4, -1, 1, header);
while (data.hasNext())
writer.append(data.next());
} catch (Exception e) {
LOGGER.info(e.getMessage());
throw e;
} finally {
if (writer != null) {
writer.finish();
LOGGER.info("Done saving sstable to: " + outLocation);
}
FileUtils.closeQuietly(writer);
}
List retVal = new LinkedList();
retVal.add(outLocation);
return retVal;
}
示例4: testCreatingSSTableWithTnx
import org.apache.cassandra.config.CFMetaData; //导入方法依赖的package包/类
/**
* Test creating sstable files using SSTableTxnWriter.
* @throws IOException
*/
@Test
public void testCreatingSSTableWithTnx() throws IOException {
final String inputSSTableFullPathFileName = CASS3_DATA_DIR + "keyspace1/bills_compress/mc-6-big-Data.db";
final Descriptor descriptor = Descriptor.fromFilename(inputSSTableFullPathFileName,
TestBaseSSTableFunSuite.HADOOP_CONF);
final CFMetaData inputCFMetaData =
SSTableUtils.metaDataFromSSTable(inputSSTableFullPathFileName,
"casspactor",
"bills_compress",
Collections.<String>emptyList(),
Collections.<String>emptyList(),
TestBaseSSTableFunSuite.HADOOP_CONF);
final CFMetaData outputCFMetaData = SSTableUtils.createNewCFMetaData(descriptor, inputCFMetaData);
final SerializationHeader header = new SerializationHeader(true, outputCFMetaData,
inputCFMetaData.partitionColumns(),
EncodingStats.NO_STATS);
final Descriptor outDescriptor = new Descriptor(
SSTableFormat.Type.BIG.info.getLatestVersion().getVersion(),
"/tmp",
"casspactor",
"bills_compress",
9,
SSTableFormat.Type.BIG, TestBaseSSTableFunSuite.HADOOP_CONF);
final SSTableTxnWriter writer = SSTableTxnWriter.create(outputCFMetaData,
outDescriptor,
4,
-1,
1,
header);
final ColumnDefinition staticCollDef =
ColumnDefinition.staticDef(inputCFMetaData, ByteBuffer.wrap("balance".getBytes()), Int32Type.instance);
final ColumnDefinition regCollDef1 =
ColumnDefinition.regularDef(inputCFMetaData, ByteBuffer.wrap("amount".getBytes()), Int32Type.instance);
final ColumnDefinition regCollDef2 =
ColumnDefinition.regularDef(inputCFMetaData, ByteBuffer.wrap("name".getBytes()), UTF8Type.instance);
final DecoratedKey key = Murmur3Partitioner.instance.decorateKey(ByteBuffer.wrap("user1".getBytes()));
final long now = System.currentTimeMillis();
final Row.Builder builder = BTreeRow.sortedBuilder();
builder.newRow(Clustering.STATIC_CLUSTERING);
builder.addCell(BufferCell.live(staticCollDef, now, Int32Type.instance.decompose(123)));
final PartitionUpdate partitionUpdate = PartitionUpdate.singleRowUpdate(inputCFMetaData,
key, builder.build());
final Row.Builder builder2 = BTreeRow.sortedBuilder();
final Clustering clustering2 = new BufferClustering(Int32Type.instance.decompose(10000));
builder2.newRow(clustering2);
builder2.addCell(BufferCell.live(regCollDef1, now, Int32Type.instance.decompose(5)));
builder2.addCell(BufferCell.live(regCollDef2, now, UTF8Type.instance.decompose("minh1")));
final PartitionUpdate partitionUpdate2 = PartitionUpdate.singleRowUpdate(inputCFMetaData,
key, builder2.build());
final List<PartitionUpdate> partitionUpdates = new ArrayList<PartitionUpdate>() {
private static final long serialVersionUID = 1L;
{
add(partitionUpdate);
add(partitionUpdate2);
}
};
final PartitionUpdate mergedUpdate = PartitionUpdate.merge(partitionUpdates);
writer.append(mergedUpdate.unfilteredIterator());
writer.finish(false);
}