com.actian.vw.connector.dt.converters

Class DTConverter

java.lang.Object

com.actian.vw.connector.dt.converters.DTConverter

All Implemented Interfaces:

ConverterConstants, IConverter

Direct Known Subclasses:

BooleanConverter, ByteConverter, CharConverter, DateConverter, DecimalConverter, DoubleConverter, FloatConverter, IntConverter, IntervalDSConverter, IntervalYMConverter, IPV4Converter, LongConverter, MoneyConverter, ShortConverter, StringConverter, TimeConverter, TimeLTzConverter, TimeStampConverter, TimeStampLTZConverter, TimeStampTZConverter, TimeTzConverter

public abstract class DTConverter
extends Object
implements IConverter, ConverterConstants

This is the super class for all the converters. All its sub classes are responsible for loading data specific to its type.

Field Summary

Fields

Modifier and Type	Field and Description
static org.apache.commons.logging.Log	LOG
protected ByteBuffer	myBuffer
protected ByteBuffer[]	myBufferArray
protected ByteBuffer	myNullBuffer

Fields inherited from interface com.actian.vw.connector.dt.converters.ConverterConstants

DAYS_SINCE_EPOCH, GMT_TIME_MASK, SECONDS_IN_DAY, SECONDS_SINCE_EPOCH, ZONE_MIN_MASK

Constructor Summary

Constructors

Constructor and Description
DTConverter(int vectorSize, boolean isNull)
DTConverter(int objectSize, int vectorSize, boolean isNull)

Method Summary

Methods

Modifier and Type	Method and Description
void	addValue(BigDecimal data)
void	addValue(double d, boolean isNull)
void	addValue(long d, boolean isNull)
void	addValue(long timeSeconds, int nanos, int zoneInfo, boolean isNull)
void	addValue(String data)
void	addValue(String[] data)
protected void	allocate() Allocates native buffers
void	clearBuffers()
void	freeNativeMemory() default implementation.
ByteBuffer[]	getBufferArray()
long	getNativeMemoryPointer()
ByteBuffer	getNullBuffer()
String	getType()
boolean	hasNullBuffer()
protected void	resize(int width) This method will resize the native buffer.
protected void	sizeCheck()

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.actian.vw.connector.dt.converters.IConverter

addNullValue

Field Detail

myBuffer

protected ByteBuffer myBuffer

myNullBuffer

protected ByteBuffer myNullBuffer

myBufferArray

protected ByteBuffer[] myBufferArray

LOG

public static final org.apache.commons.logging.Log LOG

Constructor Detail

DTConverter

public DTConverter(int vectorSize,
           boolean isNull)

DTConverter

public DTConverter(int objectSize,
           int vectorSize,
           boolean isNull)

Method Detail

getType

public String getType()

allocate

protected void allocate()

Allocates native buffers

resize

protected void resize(int width)

This method will resize the native buffer. It will copy the existing values into a local byte array clears the current buffer and allocates the new buffer with increased size.

Parameters:

width - -- column width

sizeCheck

protected void sizeCheck()
                  throws ConversionException

Throws:

ConversionException

addValue

public void addValue(String data)
              throws ConversionException

Specified by:

addValue in interface IConverter

Throws:

ConversionException

addValue

public void addValue(String[] data)
              throws ConversionException

Throws:

ConversionException

addValue

public void addValue(double d,
            boolean isNull)
              throws InvalidTypeException,
                     ConversionException

Specified by:

addValue in interface IConverter

Throws:

InvalidTypeException

ConversionException

addValue

public void addValue(long d,
            boolean isNull)
              throws InvalidTypeException,
                     ConversionException

Specified by:

addValue in interface IConverter

Throws:

InvalidTypeException

ConversionException

addValue

public void addValue(long timeSeconds,
            int nanos,
            int zoneInfo,
            boolean isNull)
              throws InvalidTypeException,
                     ConversionException

Specified by:

addValue in interface IConverter

Throws:

InvalidTypeException

ConversionException

addValue

public void addValue(BigDecimal data)
              throws InvalidTypeException,
                     ConversionException

Specified by:

addValue in interface IConverter

Throws:

InvalidTypeException

ConversionException

clearBuffers

public void clearBuffers()

Specified by:

clearBuffers in interface IConverter

hasNullBuffer

public boolean hasNullBuffer()

getBufferArray

public ByteBuffer[] getBufferArray()

Specified by:

getBufferArray in interface IConverter

getNativeMemoryPointer

public long getNativeMemoryPointer()

Specified by:

getNativeMemoryPointer in interface IConverter

freeNativeMemory

public void freeNativeMemory()

default implementation. Subclasses should implement them if needed

Specified by:

freeNativeMemory in interface IConverter

getNullBuffer

public ByteBuffer getNullBuffer()