com.vertica.sdk.BlockWriter Class Reference

Inheritance diagram for com.vertica.sdk.BlockWriter:

Collaboration diagram for com.vertica.sdk.BlockWriter:

Public Member Functions
	BlockWriter (int rowcount, VerticaType returnType)
void	addCol (ByteBuffer arg, int colstride, VerticaType dt, String colName)
void	addCol (ByteBuffer arg, int colstride, VerticaType dt)
void	addCol (ByteBuffer arg, ByteBuffer da, int colstride, VerticaType dt)
void	addCol (ByteBuffer arg, ByteBuffer da, int colstride, VerticaType dt, String colName)
boolean	checkStringUserBlockInfo (int idx)
boolean	checkTimeUserBlockInfo (int idx)
ByteBuffer	getColDataAreaRef (int idx)
ByteBuffer	getColRef (int idx)
int	getNumCols ()
int	getNumRows ()
BaseDataOID	getProcessBlockUserInfoVectorAt (int i)
SizedColumnTypes	getTypeMetaData ()
VString	getVStringWriter ()
	Allocates a new VString object to use as output.
void	next ()
	Complete writing this row of output and move to the next row.
void	resetBuffers ()
void	setBoolean (boolean r)
	Adds a BOOLEAN value to the output row.
void	setBooleanNull ()
	Adds NULL as a BOOLEAN value to the output row.
void	setDate (java.sql.Date r)
	Adds a DATE value to the output row.
void	setDateNull ()
	Adds NULL as a DATE value to the output row.
void	setDouble (double r)
	Adds a DOUBLE value to the output row.
void	setDoubleNull ()
	Adds NULL as a DOUBLE value to the output row.
void	setLong (long r)
	Adds a LONG INTEGER value to the output row.
void	setLongNull ()
	Adds NULL as a LONG INTEGER value to the output row.
void	setNumeric (BigDecimal bd)
	Allocate a new VNumeric object to use as output.
void	setNumericNull ()
void	setString (String r)
	Adds a String value to the output row.
void	setStringNull ()
	Adds NULL as a String value to the output row.
void	setTimestamp (java.sql.Timestamp r)
	Adds a TIMESTAMP value to the output row.
void	setTimestampInfiniteNeg ()
	Adds a '-infinity' TIMESTAMP value to the output row.
void	setTimestampInfinitePos ()
	Adds a '+infinity' TIMESTAMP value to the output row.
void	setTimestampNull ()
	Adds NULL as a TIMESTAMP value to the output row.
void	throwInCorrectUsageError ()
	: Throwing UdfException for incorrect setter usage

Public Attributes
int	count
int	index
int	ncols
int	nrows
SizedColumnTypes	typeMetaData

Protected Member Functions
void	clear ()
ByteBuffer	getInlineColBuffer (int idx)

Protected Attributes
ArrayList	coldataareas
ArrayList	cols
ArrayList	colstrides
ArrayList	currentPos

Detailed Description

Iterator interface for writing rows to a Vertica block

This class provides the output rows that ScalarFunction.processBlock() writes to.

Member Function Documentation

◆addCol() [1/4]

void com.vertica.sdk.VerticaBlock.addCol(ByteBuffer arg, int colstride, VerticaType dt, String colName)

inherited Add the location for reading a particular argument.

Parameters

• arg: The base location to find data.
• colstride: The stride between data instances.
• dt: The type of input.
• colName: Name of the column

Referenced by com.vertica.sdk.VerticaBlock.addCol().

◆addCol() [2/4]

void com.vertica.sdk.VerticaBlock.addCol(ByteBuffer arg, int colstride, VerticaType dt)

inherited Add the location for reading a particular argument.

Parameters

• arg: The base location to find data.
• colstride: The stride between data instances.
• dt: The type of input.

◆addCol() [3/4]

void com.vertica.sdk.VerticaBlock.addCol(ByteBuffer arg, ByteBuffer da, int colstride, VerticaType dt)

inherited Add the location for reading a particular argument.

Parameters

• arg: The base location to find data.
• da: The location to find out of band string data.
• colstride: The stride between data instances.
• dt: The type of input.

◆addCol() [4/4]

void com.vertica.sdk.VerticaBlock.addCol(ByteBuffer arg, ByteBuffer da, int colstride, VerticaType dt, String colName)

inherited Add the location for reading a particular argument.

Parameters

• arg: The base location to find data.
• da: The location to find out of band string data.
• colstride: The stride between data instances.
• dt: The type of input.
• colName: Name of the column

◆getColDataAreaRef()

ByteBuffer com.vertica.sdk.VerticaBlock.getColDataAreaRef(int idx)

inherited Get the ByteBuffer that stores out of line string data (Data Area) for the idx'th argument

Parameters

• idx: The column number to retrieve from the input row.

Returns the ByteBuffer

Referenced by com.vertica.sdk.BlockReader.getVString().

◆getColRef()

ByteBuffer com.vertica.sdk.VerticaBlock.getColRef(int idx)

inherited Example

ByteBuffer a = arg_reader.getColPtr(0);

Parameters

• idx: The column number to retrieve from the input row.

Returns a ByteBuffer to the idx'th argument, containing data for the column

Referenced by

• com.vertica.sdk.PartitionWriter.copyFromInput()
• com.vertica.sdk.BlockReader.getBoolean()
• com.vertica.sdk.BlockReader.getDouble()
• com.vertica.sdk.VerticaBlock.getInlineColBuffer()
• com.vertica.sdk.BlockReader.getLong()
• com.vertica.sdk.BlockReader.getStringLength()
• com.vertica.sdk.BlockReader.getStringLoc()
• com.vertica.sdk.BlockReader.getVNumeric()
• com.vertica.sdk.BlockReader.getVString()
• com.vertica.sdk.BlockWriter.getVStringWriter()
• com.vertica.sdk.BlockReader.isBooleanNull()
• com.vertica.sdk.ParamWriter.setBool()
• com.vertica.sdk.BlockWriter.setBoolean()
• com.vertica.sdk.BlockWriter.setBooleanNull()
• com.vertica.sdk.PartitionWriter.setBooleanValue()
• com.vertica.sdk.BlockWriter.setDate()
• com.vertica.sdk.BlockWriter.setDateNull()
• com.vertica.sdk.PartitionWriter.setDateValue()
• com.vertica.sdk.BlockWriter.setDouble()
• com.vertica.sdk.ParamWriter.setDouble()
• com.vertica.sdk.BlockWriter.setDoubleNull()
• com.vertica.sdk.PartitionWriter.setDoubleValue()
• com.vertica.sdk.BlockWriter.setLong()
• com.vertica.sdk.ParamWriter.setLong()
• com.vertica.sdk.BlockWriter.setLongNull()
• com.vertica.sdk.ParamWriter.setLongString()
• com.vertica.sdk.PartitionWriter.setLongValue()
• com.vertica.sdk.ParamWriter.setNumeric()
• com.vertica.sdk.BlockWriter.setNumeric()
• com.vertica.sdk.ParamWriter.setString()
• com.vertica.sdk.BlockWriter.setString()
• com.vertica.sdk.BlockWriter.setStringNull()
• com.vertica.sdk.BlockWriter.setTimestamp()
• com.vertica.sdk.BlockWriter.setTimestampInfiniteNeg()
• com.vertica.sdk.BlockWriter.setTimestampInfinitePos()
• com.vertica.sdk.BlockWriter.setTimestampNull()
• com.vertica.sdk.PartitionWriter.setTimestampValue()

◆getInlineColBuffer()

ByteBuffer com.vertica.sdk.VerticaBlock.getInlineColBuffer(int idx)

protected inherited Give a ByteBuffer for the given column (inline storage only). Returns a buffer with position and limit bounding the data area for a single element of that column, given the current position in the column.

Parameters

• idx: The column number to retrieve from the input row.

Returns the ByteBuffer for the column

Referenced by

• com.vertica.sdk.PartitionWriter.setStringBytes()
• com.vertica.sdk.PartitionWriter.setStringValue()

◆getNumCols()

int com.vertica.sdk.VerticaBlock.getNumCols()

inherited Returns the number of arguments held by this reader.

◆getNumRows()

int com.vertica.sdk.VerticaBlock.getNumRows()

inherited Returns the number of rows held by this block.

◆getTypeMetaData()

SizedColumnTypes com.vertica.sdk.VerticaBlock.getTypeMetaData()

inherited Returns information about the types and numbers of arguments

Referenced by

• com.vertica.sdk.ParamReader.getType()
• com.vertica.sdk.PartitionWriter.setRowFromMap()
• com.vertica.sdk.PartitionWriter.setValue()

◆getVStringWriter()

VString com.vertica.sdk.BlockWriter.getVStringWriter()

Allocates a new VString object to use as output.

Returns A new VString object to hold output. This object automatically added to the output row.

◆next()

void com.vertica.sdk.BlockWriter.next()

Complete writing this row of output and move to the next row.

◆setBoolean()

void com.vertica.sdk.BlockWriter.setBoolean(boolean r)

Adds a BOOLEAN value to the output row.

Parameters

• r: The BOOLEAN value to insert into the output row.

◆setDate()

void com.vertica.sdk.BlockWriter.setDate(java.sql.Date r)

Adds a DATE value to the output row.

Parameters

• r: The DATE value to insert into the output row.

◆setDouble()

void com.vertica.sdk.BlockWriter.setDouble(double r)

Adds a DOUBLE value to the output row.

Parameters

• r: The DOUBLE value to insert into the output row.

◆setLong()

void com.vertica.sdk.BlockWriter.setLong(long r)

Adds a LONG INTEGER value to the output row.

Parameters

• r: The LONG INTEGER value to insert into the output row.

◆setNumeric()

void com.vertica.sdk.BlockWriter.setNumeric(BigDecimal bd)

Allocate a new VNumeric object to use as output.

Returns A new VNumeric object to hold output. This object automatically added to the output row.

◆setString()

void com.vertica.sdk.BlockWriter.setString(String r)

Adds a String value to the output row.

Parameters

• r: The String value to insert into the output row.

◆setTimestamp()

void com.vertica.sdk.BlockWriter.setTimestamp(java.sql.Timestamp r)

Adds a TIMESTAMP value to the output row.

Parameters

• r: The TIMESTAMP value to insert into the output row.