Module org.eclipse.persistence.nosql

Package org.eclipse.persistence.internal.eis.cobol.helper

Class ByteConverter

java.lang.Object

org.eclipse.persistence.internal.eis.cobol.helper.ByteConverter

public class ByteConverter
extends Object

Purpose: This class handles all the byte <-> string conversions. It handles ascii/binary/packed-decimal conversions. This class is used by and dependent on FieldMetaData

Field Summary

Fields

Modifier and Type	Field	Description
static int	wordSize	This is the word size for the system, api is provided to change this if necessary

Constructor Summary

Constructors

Constructor	Description
ByteConverter()	Default constructor
ByteConverter(FieldMetaData metaData, byte[] recordData)	constructor that accepts FieldMetaData and record data, this is the preferred constructor

Method Summary

Modifier and Type	Method	Description
FieldMetaData	getFieldMetaData()	getter for FieldMetaData
byte[]	getRecordData()	getter for record data
protected String	getStringFromBinaryData(int offset, int size)	This method builds a string value from a byte array section containing binary data
String	getStringValue()	This method is the primary public access for the byte converter to extract a string value associated with a field, from a byte array associated with a record.
protected String	getStringValueFromPackedDecimal()	this method builds a string value from a byte array containing packed-decimal data
int	getWordSize()	method returns wordSize attribute
protected void	initialize()	no-argument initializer
protected void	initialize(FieldMetaData metaData, byte[] recordData)	accepts FieldMetaData and record data.
protected String	insertDecimalInString(String string)	This method checks the field to see if it should have a decimal point added and inserts it if needed.
boolean	isLittleEndian()	method returns littleEndian attribute
protected String	removeDecimalInString(String string)	This method removes the decimal if needed
protected void	setBinaryDataToStringValue(String value, int offset, int size)	this method sets a section of byte array to the value represented by the string value using a binary representation.
protected void	setByteArrayToPackedDecimalValue(String value)	this method sets byte array data to a packed-decimal value held in the value argument
void	setBytesToValue(String value)	This is the primary public access for writing string values associated with a field to a byte array associated with a record.
void	setFieldMetaData(FieldMetaData newFieldMetaData)	setter for FieldMetaData
void	setIsLittleEndian(boolean newValue)	method sets littleEndian attribute
void	setRecordData(byte[] newRecordData)	setter for record data
void	setWordSize(int newWordSize)	method sets wordSize attribute
protected void	swapEndians(int offset, int end)	this method will swap the ends of a byte in a byte array starting at offset and ending at end
protected void	twosComplement(int offset, int length)	this method performs a bitwise twos complement on a section of a byte array starting at offset and ending at offset + length

Methods inherited from class java.lang.Object

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

Field Details

wordSize

public static int wordSize

This is the word size for the system, api is provided to change this if necessary

Constructor Details

ByteConverter

public ByteConverter()

Default constructor

ByteConverter

public ByteConverter(FieldMetaData metaData,
 byte[] recordData)

constructor that accepts FieldMetaData and record data, this is the preferred constructor

Method Details

initialize

protected void initialize()

no-argument initializer

initialize

protected void initialize(FieldMetaData metaData,
 byte[] recordData)

accepts FieldMetaData and record data.

isLittleEndian

public boolean isLittleEndian()

method returns littleEndian attribute

setIsLittleEndian

public void setIsLittleEndian(boolean newValue)

method sets littleEndian attribute

getWordSize

public int getWordSize()

method returns wordSize attribute

setWordSize

public void setWordSize(int newWordSize)

method sets wordSize attribute

insertDecimalInString

protected String insertDecimalInString(String string)

This method checks the field to see if it should have a decimal point added and inserts it if needed.

removeDecimalInString

protected String removeDecimalInString(String string)

This method removes the decimal if needed

getStringValue

public String getStringValue()

This method is the primary public access for the byte converter to extract a string value associated with a field, from a byte array associated with a record.

setBytesToValue

public void setBytesToValue(String value)

This is the primary public access for writing string values associated with a field to a byte array associated with a record.

getFieldMetaData

public FieldMetaData getFieldMetaData()

getter for FieldMetaData

setFieldMetaData

public void setFieldMetaData(FieldMetaData newFieldMetaData)

setter for FieldMetaData

getRecordData

public byte[] getRecordData()

getter for record data

setRecordData

public void setRecordData(byte[] newRecordData)

setter for record data

getStringValueFromPackedDecimal

protected String getStringValueFromPackedDecimal()

this method builds a string value from a byte array containing packed-decimal data

setByteArrayToPackedDecimalValue

protected void setByteArrayToPackedDecimalValue(String value)

this method sets byte array data to a packed-decimal value held in the value argument

swapEndians

protected void swapEndians(int offset,
 int end)

this method will swap the ends of a byte in a byte array starting at offset and ending at end

twosComplement

protected void twosComplement(int offset,
 int length)

this method performs a bitwise twos complement on a section of a byte array starting at offset and ending at offset + length

getStringFromBinaryData

protected String getStringFromBinaryData(int offset,
 int size)

This method builds a string value from a byte array section containing binary data

setBinaryDataToStringValue

protected void setBinaryDataToStringValue(String value,
 int offset,
 int size)

this method sets a section of byte array to the value represented by the string value using a binary representation.