Package org.apache.pinot.common.datablock

Class MetadataBlock

java.lang.Object

org.apache.pinot.common.datablock.BaseDataBlock

org.apache.pinot.common.datablock.MetadataBlock

All Implemented Interfaces:

DataBlock

public class MetadataBlock
extends BaseDataBlock

A block type to indicate some metadata about the current processing state. For the different types of metadata blocks see MetadataBlock.MetadataBlockType.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	MetadataBlock.MetadataBlockType

Nested classes/interfaces inherited from interface org.apache.pinot.common.datablock.DataBlock

DataBlock.Type

Field Summary

Fields inherited from class org.apache.pinot.common.datablock.BaseDataBlock

_dataSchema, _errCodeToExceptionMap, _fixDataSize, _fixedSizeData, _fixedSizeDataBytes, _metadata, _numColumns, _numRows, _stringDictionary, _variableSizeData, _variableSizeDataBytes, HEADER_SIZE

Constructor Summary

Constructors

Constructor	Description
MetadataBlock(ByteBuffer byteBuffer)
MetadataBlock(MetadataBlock.MetadataBlockType type)

Method Summary

Modifier and Type	Method	Description
int	getDataBlockVersionType()	Return the int serialized form of the data block version and type.
protected int	getOffsetInFixedBuffer(int rowId, int colId)	return the offset in _fixedSizeDataBytes of the row/column ID.
MetadataBlock.MetadataBlockType	getType()
protected int	positionOffsetInVariableBufferAndGetLength(int rowId, int colId)	position the _variableSizeDataBytes to the corresponding row/column ID.
MetadataBlock	toDataOnlyDataTable()
MetadataBlock	toMetadataOnlyDataTable()

Methods inherited from class org.apache.pinot.common.datablock.BaseDataBlock

addException, addException, deserializeStringDictionary, getBigDecimal, getBytes, getDataSchema, getDouble, getDoubleArray, getExceptions, getFloat, getFloatArray, getInt, getIntArray, getLong, getLongArray, getMetadata, getNullRowIds, getNumberOfRows, getString, getStringArray, getVersion, serializeStringDictionary, toBytes, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

MetadataBlock

public MetadataBlock(MetadataBlock.MetadataBlockType type)

MetadataBlock

public MetadataBlock(ByteBuffer byteBuffer)
              throws IOException

Throws:

IOException

Method Detail

getType

public MetadataBlock.MetadataBlockType getType()

getDataBlockVersionType

public int getDataBlockVersionType()

Description copied from class: BaseDataBlock

Return the int serialized form of the data block version and type.

Specified by:

getDataBlockVersionType in class BaseDataBlock

Returns:

getOffsetInFixedBuffer

protected int getOffsetInFixedBuffer(int rowId,
                                     int colId)

Description copied from class: BaseDataBlock

return the offset in _fixedSizeDataBytes of the row/column ID.

Specified by:

getOffsetInFixedBuffer in class BaseDataBlock

Parameters:

rowId - row ID

colId - column ID

Returns:

the offset in the fixed size buffer for the row/columnID.

positionOffsetInVariableBufferAndGetLength

protected int positionOffsetInVariableBufferAndGetLength(int rowId,
                                                         int colId)

Description copied from class: BaseDataBlock

position the _variableSizeDataBytes to the corresponding row/column ID. and return the length of bytes to extract from the variable size buffer.

Specified by:

positionOffsetInVariableBufferAndGetLength in class BaseDataBlock

Parameters:

rowId - row ID

colId - column ID

Returns:

the length to extract from variable size buffer.

toMetadataOnlyDataTable

public MetadataBlock toMetadataOnlyDataTable()

toDataOnlyDataTable

public MetadataBlock toDataOnlyDataTable()