Package org.pentaho.di.core.row.value

Class ValueMetaConverter

java.lang.Object

org.pentaho.di.core.row.value.ValueMetaConverter

All Implemented Interfaces:

Serializable, IValueMetaConverter

public class ValueMetaConverter
extends Object
implements Serializable, IValueMetaConverter

This class is intended to facilitate any needed conversions of a ValueMetaInterface field from one type to another. It was initially implemented for Orc storage in the pentaho-hadoop-shims project. This class is added here because the conversions are not dependant on orc in any way.

Important note:
This class is not intended to mimic the conversions that exist on PDI! It handles conversions from and to Avro/Parquet/Orc format, as so it must only take in consideration those Specs!

Created by tkafalas on 12/8/2017.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
ValueMetaConverter()

Method Summary

Modifier and Type	Method	Description
protected Object	convertFromBigNumberMetaInterface(int targetValueMetaType, Object value)
protected Object	convertFromBinaryMetaInterface(int targetValueMetaType, Object value)
protected Object	convertFromBooleanMetaInterface(int targetValueMetaType, Object value)
protected Object	convertFromDateMetaInterface(int targetValueMetaType, Object value)
protected Object	convertFromInetMetaInterface(int targetValueMetaType, Object value)
protected Object	convertFromIntegerMetaInterface(int targetValueMetaType, Object value)
protected Object	convertFromNumberMetaInterface(int targetValueMetaType, Object value)
protected Object	convertFromSerializableMetaInterface(int targetValueMetaType, Object value)
Object	convertFromSourceToTargetDataType(int sourceValueMetaType, int targetValueMetaType, Object value)
protected Object	convertFromStringMetaInterface(int targetValueMetaType, Object value)
protected Object	convertFromTimestampMetaInterface(int targetValueMetaType, Object value)
SimpleDateFormat	getDatePattern()
int	getPrecision()
void	setDatePattern(SimpleDateFormat datePattern)
void	setPrecision(int precision)

Methods inherited from class java.lang.Object

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

Constructor Detail

ValueMetaConverter

public ValueMetaConverter()

Method Detail

getDatePattern

public SimpleDateFormat getDatePattern()

setDatePattern

public void setDatePattern(SimpleDateFormat datePattern)

Specified by:

setDatePattern in interface IValueMetaConverter

getPrecision

public int getPrecision()

setPrecision

public void setPrecision(int precision)

convertFromSourceToTargetDataType

public Object convertFromSourceToTargetDataType(int sourceValueMetaType,
                                                int targetValueMetaType,
                                                Object value)
                                         throws ValueMetaConversionException

Specified by:

convertFromSourceToTargetDataType in interface IValueMetaConverter

Parameters:

sourceValueMetaType - The source ValueMeta Type defined in the ValueMetaInterface

targetValueMetaType - The target ValueMeta Type defined in the ValueMetaInterface

value - the source value to be converted

Returns:

An object representing the value converted to targetMetaType. This value is suitable to use for

Throws:

ValueMetaConversionException

convertFromStringMetaInterface

protected Object convertFromStringMetaInterface(int targetValueMetaType,
                                                Object value)
                                         throws ValueMetaConversionException

Throws:

ValueMetaConversionException

convertFromDateMetaInterface

protected Object convertFromDateMetaInterface(int targetValueMetaType,
                                              Object value)
                                       throws ValueMetaConversionException

Throws:

ValueMetaConversionException

convertFromNumberMetaInterface

protected Object convertFromNumberMetaInterface(int targetValueMetaType,
                                                Object value)
                                         throws ValueMetaConversionException

Throws:

ValueMetaConversionException

convertFromBooleanMetaInterface

protected Object convertFromBooleanMetaInterface(int targetValueMetaType,
                                                 Object value)
                                          throws ValueMetaConversionException

Throws:

ValueMetaConversionException

convertFromIntegerMetaInterface

protected Object convertFromIntegerMetaInterface(int targetValueMetaType,
                                                 Object value)
                                          throws ValueMetaConversionException

Throws:

ValueMetaConversionException

convertFromBigNumberMetaInterface

protected Object convertFromBigNumberMetaInterface(int targetValueMetaType,
                                                   Object value)
                                            throws ValueMetaConversionException

Throws:

ValueMetaConversionException

convertFromTimestampMetaInterface

protected Object convertFromTimestampMetaInterface(int targetValueMetaType,
                                                   Object value)
                                            throws ValueMetaConversionException

Throws:

ValueMetaConversionException

convertFromInetMetaInterface

protected Object convertFromInetMetaInterface(int targetValueMetaType,
                                              Object value)
                                       throws ValueMetaConversionException

Throws:

ValueMetaConversionException

convertFromBinaryMetaInterface

protected Object convertFromBinaryMetaInterface(int targetValueMetaType,
                                                Object value)
                                         throws ValueMetaConversionException

Throws:

ValueMetaConversionException

convertFromSerializableMetaInterface

protected Object convertFromSerializableMetaInterface(int targetValueMetaType,
                                                      Object value)
                                               throws ValueMetaConversionException

Throws:

ValueMetaConversionException