Package com.softwaremining.wrappers.format

Class NumericFormatCompressed

java.lang.Object

com.softwaremining.wrappers.format.Format

com.softwaremining.wrappers.format.AbstractNumericFormat

com.softwaremining.wrappers.format.NumericFormat

com.softwaremining.wrappers.format.NumericFormatCompressed

Direct Known Subclasses:

NumericFormatBinary, NumericFormatBinaryX, NumericFormatDouble, NumericFormatPackedDecimal

public abstract class NumericFormatCompressed
extends NumericFormat

Provides a formatter that emulates COBOL's NumericFormatCompressed (COMP-3) functionality in Java. Given a decimal value and specified integer and fractional digit counts, this class:
1) encodes the value into packed decimal (two digits per byte, high-order nibble first)
2) appends a sign nibble ('C','D','F') in the low-order nibble of the last byte
3) decodes packed decimal back into numeric values, respecting sign and scale
4) enforces correct byte length based on digit counts
This implementation delivers a reliable, high-performance Java equivalent of COBOL's compressed numeric format for mission-critical data-conversion workflows.

Field Summary

Fields inherited from class com.softwaremining.wrappers.format.NumericFormat

P_onLeft, P_onRight, P_Size

Fields inherited from class com.softwaremining.wrappers.format.AbstractNumericFormat

DECIMAL_POINT_ON_SYSTEM, scalingPositionsAfterDecimal, scalingPositionsBeforeDecimal

Fields inherited from class com.softwaremining.wrappers.format.Format

additionalParamsPostfixesMap, justifiedRight, totalRuntime_convertFromDisplayToStorage, totalRuntime_getInstance

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	NumericFormatCompressed(String picture)

Method Summary

Modifier and Type	Method	Description
abstract String	convertFromCompressedStorageToDisplayFormat(String formattedString)	Convert from Storage-Compressed to Display This methods returns the actual stored value, even it is bigger than the defined format.
String	convertFromDisplayToStorage(double value, boolean[] sizeError)	format a value according to the PIC definition
String	convertFromDisplayToStorage(String _value, boolean[] sizeError)	format a value according to the PIC definition
String	convertFromDisplayToStorage(BigDecimal value, boolean[] sizeError)	format a value according to the PIC definition
String	convertFromDisplayToStorage(BigInteger value, boolean[] sizeError)	format a value according to the PIC definition
final boolean	isCompressed()

Methods inherited from class com.softwaremining.wrappers.format.NumericFormat

getIntegerSize, getNumberOfDigits, getSQLObject, getStorageCellSize

Methods inherited from class com.softwaremining.wrappers.format.AbstractNumericFormat

adjustPercision, getFractionSize, getSystemDecimalPoint, isBlankWhenZero, isDecimal, isSigned, setBlankWhenZero

Methods inherited from class com.softwaremining.wrappers.format.Format

assignJustifiedRight, convertFromDisplayToStorage, convertFromDisplayToStorage, convertFromDisplayToStorage, convertFromDisplayToStorage, convertFromStorageToDisplayFormat, getAllFormatInstances, getInstance, getInstance, getPicture, isJustifiedRight, setPicture, toString

Methods inherited from class java.lang.Object

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

Constructor Details

NumericFormatCompressed

protected NumericFormatCompressed(String picture)

Method Details

isCompressed

public final boolean isCompressed()

Specified by:

isCompressed in class Format

convertFromCompressedStorageToDisplayFormat

public abstract String convertFromCompressedStorageToDisplayFormat(String formattedString)

Convert from Storage-Compressed to Display This methods returns the actual stored value, even it is bigger than the defined format.
E.g. PIC 9(2) COMP can store a value of 30000 ! This method will return "30000", but convertFromStorageToDisplayFormat will return "30".

Parameters:

formattedString -

Returns:

convertFromDisplayToStorage

public String convertFromDisplayToStorage(double value,
 boolean[] sizeError)

format a value according to the PIC definition

Specified by:

convertFromDisplayToStorage in class Format

convertFromDisplayToStorage

public String convertFromDisplayToStorage(String _value,
 boolean[] sizeError)

format a value according to the PIC definition

Specified by:

convertFromDisplayToStorage in class Format

convertFromDisplayToStorage

public String convertFromDisplayToStorage(BigDecimal value,
 boolean[] sizeError)

format a value according to the PIC definition

Specified by:

convertFromDisplayToStorage in class Format

convertFromDisplayToStorage

public String convertFromDisplayToStorage(BigInteger value,
 boolean[] sizeError)

format a value according to the PIC definition

Specified by:

convertFromDisplayToStorage in class Format