net.snowflake.client.jdbc

Class SnowflakeResultSetSerializableV1

java.lang.Object

net.snowflake.client.jdbc.SnowflakeResultSetSerializableV1

All Implemented Interfaces:

Serializable, SnowflakeResultSetSerializable

public class SnowflakeResultSetSerializableV1
extends Object
implements SnowflakeResultSetSerializable, Serializable

This object is an intermediate object between result JSON from GS and ResultSet. Originally, it is created from result JSON. And it can also be serializable. Logically, it stands for a part of ResultSet.

A typical result JSON data section consists of the content of the first chunk file and file metadata for the rest of chunk files e.g. URL, chunk size, etc. So this object consists of one chunk data and a list of chunk file entries. In actual cases, it may only include chunk data or chunk files entries.

This object is serializable, so it can be distributed to other threads or worker nodes for distributed processing.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SnowflakeResultSetSerializableV1.ChunkFileMetadata An Entity class to represent a chunk file metadata.

Constructor Summary

Constructors

Constructor and Description
SnowflakeResultSetSerializableV1() Default constructor.

Method Summary

Modifier and Type	Method and Description
static SnowflakeResultSetSerializableV1	create(com.fasterxml.jackson.databind.JsonNode rootNode, SFSession sfSession, SFStatement sfStatement) A factory function to create SnowflakeResultSetSerializable object from result JSON node.
com.fasterxml.jackson.databind.JsonNode	getAndClearFirstChunkRowset()
net.snowflake.common.core.SFBinaryFormat	getBinaryFormatter()
ChunkDownloader	getChunkDownloader()
int	getChunkFileCount()
List<SnowflakeResultSetSerializableV1.ChunkFileMetadata>	getChunkFileMetadatas()
Map<String,String>	getChunkHeadersMap()
int	getColumnCount()
long	getCompressedDataSizeInBytes() Retrieve compressed data size in the the ResultSet Serializable object.
net.snowflake.common.core.SnowflakeDateTimeFormat	getDateFormatter()
String	getFinalDatabaseName()
String	getFinalRoleName()
String	getFinalSchemaName()
String	getFinalWarehouseName()
int	getFirstChunkRowCount()
String	getFirstChunkStringData()
long	getMemoryLimit()
List<MetaDataOfBinds>	getMetaDataOfBinds()
int	getNetworkTimeoutInMilli()
int	getNumberOfBinds()
OCSPMode	getOCSPMode()
Map<String,Object>	getParameters()
String	getQrmk()
String	getQueryId()
QueryResultFormat	getQueryResultFormat()
List<SnowflakeColumnMetadata>	getResultColumnMetadata()
int	getResultPrefetchThreads()
ResultSet	getResultSet() Get ResultSet from the ResultSet Serializable object so that the user can access the data.
ResultSet	getResultSet(Properties info) Get ResultSet from the ResultSet Serializable object so that the user can access the data.
int	getResultSetConcurrency()
int	getResultSetHoldability()
int	getResultSetType()
long	getResultVersion()
org.apache.arrow.memory.RootAllocator	getRootAllocator()
long	getRowCount() Retrieve total row count included in the the ResultSet Serializable object.
long	getSendResultTime()
Optional<SFSession>	getSession()
SFResultSetMetaData	getSFResultSetMetaData()
SnowflakeConnectString	getSnowflakeConnectString()
SFStatementType	getStatementType()
net.snowflake.common.core.SnowflakeDateTimeFormat	getTimeFormatter()
net.snowflake.common.core.SnowflakeDateTimeFormat	getTimestampLTZFormatter()
net.snowflake.common.core.SnowflakeDateTimeFormat	getTimestampNTZFormatter()
net.snowflake.common.core.SnowflakeDateTimeFormat	getTimestampTZFormatter()
TimeZone	getTimeZone()
boolean	getTreatNTZAsUTC()
long	getUncompressedDataSizeInBytes() Retrieve Uncompressed data size in the the ResultSet Serializable object.
boolean	isArrayBindSupported()
boolean	isHonorClientTZForTimestampNTZ()
boolean	isTotalRowCountTruncated()
void	setChunkDownloader(ChunkDownloader chunkDownloader)
void	setChunkFileCount(int chunkFileCount)
void	setFristChunkStringData(String firstChunkStringData)
void	setQueryResultFormat(QueryResultFormat queryResultFormat)
void	setRootAllocator(org.apache.arrow.memory.RootAllocator rootAllocator)
List<SnowflakeResultSetSerializable>	splitBySize(long maxSizeInBytes) Split this object into small pieces based on the user specified data size.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

SnowflakeResultSetSerializableV1

public SnowflakeResultSetSerializableV1()

Default constructor.

Method Detail

setRootAllocator

public void setRootAllocator(org.apache.arrow.memory.RootAllocator rootAllocator)

setQueryResultFormat

public void setQueryResultFormat(QueryResultFormat queryResultFormat)

setChunkFileCount

public void setChunkFileCount(int chunkFileCount)

setFristChunkStringData

public void setFristChunkStringData(String firstChunkStringData)

setChunkDownloader

public void setChunkDownloader(ChunkDownloader chunkDownloader)

getSFResultSetMetaData

public SFResultSetMetaData getSFResultSetMetaData()

getResultSetType

public int getResultSetType()

getResultSetConcurrency

public int getResultSetConcurrency()

getResultSetHoldability

public int getResultSetHoldability()

getSnowflakeConnectString

public SnowflakeConnectString getSnowflakeConnectString()

getOCSPMode

public OCSPMode getOCSPMode()

getQrmk

public String getQrmk()

getNetworkTimeoutInMilli

public int getNetworkTimeoutInMilli()

getResultPrefetchThreads

public int getResultPrefetchThreads()

getMemoryLimit

public long getMemoryLimit()

getChunkHeadersMap

public Map<String,String> getChunkHeadersMap()

getChunkFileMetadatas

public List<SnowflakeResultSetSerializableV1.ChunkFileMetadata> getChunkFileMetadatas()

getRootAllocator

public org.apache.arrow.memory.RootAllocator getRootAllocator()

getQueryResultFormat

public QueryResultFormat getQueryResultFormat()

getChunkFileCount

public int getChunkFileCount()

isArrayBindSupported

public boolean isArrayBindSupported()

getQueryId

public String getQueryId()

getFinalDatabaseName

public String getFinalDatabaseName()

getFinalSchemaName

public String getFinalSchemaName()

getFinalRoleName

public String getFinalRoleName()

getFinalWarehouseName

public String getFinalWarehouseName()

getStatementType

public SFStatementType getStatementType()

isTotalRowCountTruncated

public boolean isTotalRowCountTruncated()

getParameters

public Map<String,Object> getParameters()

getColumnCount

public int getColumnCount()

getResultColumnMetadata

public List<SnowflakeColumnMetadata> getResultColumnMetadata()

getAndClearFirstChunkRowset

public com.fasterxml.jackson.databind.JsonNode getAndClearFirstChunkRowset()

getFirstChunkRowCount

public int getFirstChunkRowCount()

getResultVersion

public long getResultVersion()

getNumberOfBinds

public int getNumberOfBinds()

getChunkDownloader

public ChunkDownloader getChunkDownloader()

getTimestampNTZFormatter

public net.snowflake.common.core.SnowflakeDateTimeFormat getTimestampNTZFormatter()

getTimestampLTZFormatter

public net.snowflake.common.core.SnowflakeDateTimeFormat getTimestampLTZFormatter()

getTimestampTZFormatter

public net.snowflake.common.core.SnowflakeDateTimeFormat getTimestampTZFormatter()

getDateFormatter

public net.snowflake.common.core.SnowflakeDateTimeFormat getDateFormatter()

getTimeFormatter

public net.snowflake.common.core.SnowflakeDateTimeFormat getTimeFormatter()

getTimeZone

public TimeZone getTimeZone()

isHonorClientTZForTimestampNTZ

public boolean isHonorClientTZForTimestampNTZ()

getBinaryFormatter

public net.snowflake.common.core.SFBinaryFormat getBinaryFormatter()

getSendResultTime

public long getSendResultTime()

getMetaDataOfBinds

public List<MetaDataOfBinds> getMetaDataOfBinds()

getFirstChunkStringData

public String getFirstChunkStringData()

getTreatNTZAsUTC

public boolean getTreatNTZAsUTC()

getSession

public Optional<SFSession> getSession()

create

public static SnowflakeResultSetSerializableV1 create(com.fasterxml.jackson.databind.JsonNode rootNode,
                                                      SFSession sfSession,
                                                      SFStatement sfStatement)
                                               throws SnowflakeSQLException

A factory function to create SnowflakeResultSetSerializable object from result JSON node.

Parameters:

rootNode - result JSON node received from GS

sfSession - the Snowflake session

sfStatement - the Snowflake statement

Returns:

processed ResultSetSerializable object

Throws:

SnowflakeSQLException - if failed to parse the result JSON node

splitBySize

public List<SnowflakeResultSetSerializable> splitBySize(long maxSizeInBytes)
                                                 throws SQLException

Split this object into small pieces based on the user specified data size.

Parameters:

maxSizeInBytes - the expected max data size wrapped in the result ResultSetSerializables object. NOTE: if a result chunk size is greater than this value, the ResultSetSerializable object will include one result chunk.

Returns:

a list of SnowflakeResultSetSerializable

Throws:

SQLException - if fails to split objects.

getResultSet

public ResultSet getResultSet()
                       throws SQLException

Get ResultSet from the ResultSet Serializable object so that the user can access the data. The ResultSet is sessionless.

Specified by:

getResultSet in interface SnowflakeResultSetSerializable

Returns:

a ResultSet which represents for the data wrapped in the object

Throws:

SQLException

getResultSet

public ResultSet getResultSet(Properties info)
                       throws SQLException

Get ResultSet from the ResultSet Serializable object so that the user can access the data.

Specified by:

getResultSet in interface SnowflakeResultSetSerializable

Parameters:

info - The proxy sever information if proxy is necessary.

Returns:

a ResultSet which represents for the data wrapped in the object

Throws:

SQLException

getRowCount

public long getRowCount()
                 throws SQLException

Retrieve total row count included in the the ResultSet Serializable object.

GS sends the data of first chunk and metadata of the other chunk if exist to client, so this function calculates the row count for all of them.

Specified by:

getRowCount in interface SnowflakeResultSetSerializable

Returns:

the total row count from metadata

Throws:

SQLException

getCompressedDataSizeInBytes

public long getCompressedDataSizeInBytes()
                                  throws SQLException

Retrieve compressed data size in the the ResultSet Serializable object.

GS sends the data of first chunk and metadata of the other chunks if exist to client, so this function calculates the data size for all of them. NOTE: if first chunk exists, this function uses its uncompressed data size as its compressed data size in this calculation though it is not compressed.

Specified by:

getCompressedDataSizeInBytes in interface SnowflakeResultSetSerializable

Returns:

the total compressed data size in bytes from metadata

Throws:

SQLException

getUncompressedDataSizeInBytes

public long getUncompressedDataSizeInBytes()
                                    throws SQLException

Retrieve Uncompressed data size in the the ResultSet Serializable object.

GS sends the data of first chunk and metadata of the other chunk if exist to client, so this function calculates the data size for all of them.

Specified by:

getUncompressedDataSizeInBytes in interface SnowflakeResultSetSerializable

Returns:

the total uncompressed data size in bytes from metadata

Throws:

SQLException

toString

public String toString()

Overrides:

toString in class Object