com.datastax.oss.protocol.internal.response.result

Class RowsMetadata

java.lang.Object

com.datastax.oss.protocol.internal.response.result.RowsMetadata

Direct Known Subclasses:

DseRowsMetadata

public class RowsMetadata
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
int	columnCount
List<ColumnSpec>	columnSpecs empty if and only if the SKIP_METADATA flag is present (there is no difference between skipping the column specs, and having the specs but no columns in them)
int	flags
byte[]	newResultMetadataId
ByteBuffer	pagingState
int[]	pkIndices

Constructor Summary

Constructors

Constructor and Description
RowsMetadata(int columnCount, ByteBuffer pagingState, int[] pkIndices, byte[] newResultMetadataId) Builds a new instance with NO_METADATA == true.
RowsMetadata(int flags, List<ColumnSpec> columnSpecs, int columnCount, ByteBuffer pagingState, int[] pkIndices, byte[] newResultMetadataId) This constructor should only be used in message codecs.
RowsMetadata(List<ColumnSpec> columnSpecs, ByteBuffer pagingState, int[] pkIndices, byte[] newResultMetadataId) Builds a new instance with NO_METADATA == false; the column count is set to the number of column specifications in the provided list.

Method Summary

Modifier and Type	Method and Description
protected static int	computeFlags(boolean noMetadata, List<ColumnSpec> columnSpecs, ByteBuffer pagingState, byte[] newResultMetadataId)
static <B> RowsMetadata	decode(B source, PrimitiveCodec<B> decoder, boolean withPkIndices, int protocolVersion)
<B> void	encode(B dest, PrimitiveCodec<B> encoder, boolean withPkIndices, int protocolVersion)
int	encodedSize(boolean withPkIndices, int protocolVersion)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

columnSpecs

public final List<ColumnSpec> columnSpecs

empty if and only if the SKIP_METADATA flag is present (there is no difference between skipping the column specs, and having the specs but no columns in them)

columnCount

public final int columnCount

pagingState

public final ByteBuffer pagingState

pkIndices

public final int[] pkIndices

newResultMetadataId

public final byte[] newResultMetadataId

flags

public final int flags

Constructor Detail

RowsMetadata

public RowsMetadata(List<ColumnSpec> columnSpecs,
                    ByteBuffer pagingState,
                    int[] pkIndices,
                    byte[] newResultMetadataId)

Builds a new instance with NO_METADATA == false; the column count is set to the number of column specifications in the provided list.

RowsMetadata

public RowsMetadata(int columnCount,
                    ByteBuffer pagingState,
                    int[] pkIndices,
                    byte[] newResultMetadataId)

Builds a new instance with NO_METADATA == true.

RowsMetadata

public RowsMetadata(int flags,
                    List<ColumnSpec> columnSpecs,
                    int columnCount,
                    ByteBuffer pagingState,
                    int[] pkIndices,
                    byte[] newResultMetadataId)

This constructor should only be used in message codecs. To build an outgoing message from client code, use RowsMetadata(int, ByteBuffer, int[], byte[]) or RowsMetadata(List, ByteBuffer, int[], byte[]) so that the flags are computed automatically.

Method Detail

computeFlags

protected static int computeFlags(boolean noMetadata,
                                  List<ColumnSpec> columnSpecs,
                                  ByteBuffer pagingState,
                                  byte[] newResultMetadataId)

encode

public <B> void encode(B dest,
                       PrimitiveCodec<B> encoder,
                       boolean withPkIndices,
                       int protocolVersion)

encodedSize

public int encodedSize(boolean withPkIndices,
                       int protocolVersion)

decode

public static <B> RowsMetadata decode(B source,
                                      PrimitiveCodec<B> decoder,
                                      boolean withPkIndices,
                                      int protocolVersion)