org.apache.iotdb.tsfile.read.common.block.column

Interface ColumnEncoder

All Known Implementing Classes:

BinaryArrayColumnEncoder, ByteArrayColumnEncoder, Int32ArrayColumnEncoder, Int64ArrayColumnEncoder, RunLengthColumnEncoder

public interface ColumnEncoder

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	ColumnEncoder.ColumnToBooleanFunction

Method Summary

Modifier and Type	Method and Description
static boolean[]	deserializeBooleanArray(ByteBuffer input, int size)
static boolean[]	deserializeNullIndicators(ByteBuffer input, int positionCount)
Column	readColumn(ByteBuffer input, TSDataType dataType, int positionCount) Read a column from the specified input.
default TimeColumn	readTimeColumn(ByteBuffer input, int positionCount) Read a time column from the specified input.
static void	serializeBooleanArray(DataOutputStream output, Column column, ColumnEncoder.ColumnToBooleanFunction toBooleanFunction)
static void	serializeNullIndicators(DataOutputStream output, Column column)
void	writeColumn(DataOutputStream output, Column column) Write the specified column to the specified output

Method Detail

readTimeColumn

default TimeColumn readTimeColumn(ByteBuffer input,
                                  int positionCount)

Read a time column from the specified input.

readColumn

Column readColumn(ByteBuffer input,
                  TSDataType dataType,
                  int positionCount)

Read a column from the specified input.

writeColumn

void writeColumn(DataOutputStream output,
                 Column column)
          throws IOException

Write the specified column to the specified output

Throws:

IOException

serializeNullIndicators

static void serializeNullIndicators(DataOutputStream output,
                                    Column column)
                             throws IOException

Throws:

IOException

deserializeNullIndicators

static boolean[] deserializeNullIndicators(ByteBuffer input,
                                           int positionCount)

serializeBooleanArray

static void serializeBooleanArray(DataOutputStream output,
                                  Column column,
                                  ColumnEncoder.ColumnToBooleanFunction toBooleanFunction)
                           throws IOException

Throws:

IOException

deserializeBooleanArray

static boolean[] deserializeBooleanArray(ByteBuffer input,
                                         int size)