com.bea.wlxt.bintype
Class BintypePacked

java.lang.Object
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  +--com.bea.wlxt.bintype.Bintype
        |
        +--com.bea.wlxt.bintype.BintypePacked

public class BintypePacked

extends Bintype

Author:

Copyright © 2000, 2001 BEA Systems, Inc. All Rights Reserved.

See Also:

Serialized Form

Field Summary

protected byte[]

byteUnpack Table to convert packed decimal into decimal.

Fields inherited from class com.bea.wlxt.bintype.Bintype

codepageEBCDIC

Constructor Summary

BintypePacked(java.lang.String dataType)

Method Summary

protected byte[]	convertPacked(java.math.BigDecimal value, int bytes, int precision, int scale, byte sign, com.bea.wlxt.mfl.MFLField mflField) Convert a BigDecimal to a packed decimal number.
protected java.math.BigDecimal	convertPacked(byte[] value, int precision, int scale, com.bea.wlxt.mfl.MFLField mflField) Convert a packed decimal number to a BigDecimal.
boolean	isPacked(com.bea.wlxt.mfl.MFLField mflField)
boolean	isPacked(java.lang.String dataType)
java.lang.String	read(java.io.InputStream byteStream, com.bea.wlxt.mfl.MFLField mflField)
java.lang.String	toString()
void	write(BintypeOutputStream byteStream, com.bea.wlxt.mfl.MFLField mflField, java.lang.String value)
void	writePacked(java.io.OutputStream byteStream, java.math.BigDecimal value, int bytes, int precision, int scale, com.bea.wlxt.mfl.MFLField mflField) Write a BigDecimal as a mainframe signed packed decimal number.
void	writePackedUnsigned(java.io.OutputStream byteStream, java.math.BigDecimal value, int bytes, int precision, int scale, com.bea.wlxt.mfl.MFLField mflField) Write a BigDecimal as a mainframe unsigned packed decimal number.

Methods inherited from class com.bea.wlxt.bintype.Bintype

applyPadAndTrim, applyPadTrimAndTruncate, canBeDataDelimited, canBeDelimited, canBeDelimSeparator, canBeFieldType, canBeLenFieldType, canBePadded, canBePassLiteral, canBeTagFieldType, canBeTrimmed, canBeTruncated, canHaveDecimalPlaces, getBinaryBytes, getDescriptionText, getDisplayName, getTypeName, isCodepageOK, isCutoffRequired, isDateType, isFixedSize, isValueOK, makeString, readDataDelim, readDelimitedField, readLength, readTag, reverseBytes, writeLength, writeTag

Methods inherited from class java.lang.Object

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

Field Detail

byteUnpack

protected byte[] byteUnpack

Table to convert packed decimal into decimal.

Constructor Detail

BintypePacked

public BintypePacked(java.lang.String dataType)

Method Detail

read

public java.lang.String read(java.io.InputStream byteStream,
                             com.bea.wlxt.mfl.MFLField mflField)
                      throws BintypeException

Overrides:

read in class Bintype

convertPacked

protected java.math.BigDecimal convertPacked(byte[] value,
                                             int precision,
                                             int scale,
                                             com.bea.wlxt.mfl.MFLField mflField)
                                      throws BintypeException

Convert a packed decimal number to a BigDecimal. This will produce a BigDecimal that contains the proper value for the mainframe packed packed date given in buf. The packed decimal paramters relate to COBOL picture strings as follows:

 999v99   5,2,0   Normal case, 5 digits, 2 digits to right of decimal
                  point, no scaling.
 vpp999   5,5,2   5 digits, 3 digits to right of decimal, 2 scale digits.
 999ppv   5,0,2   5 digits, 0 digits to right of decimal, 2 scale digits.
 

Parameters:

buf - The mainframe bytes to be converted.

precision - The number of digits to the right of the decimal point.

scale - The number of assumed zero digits.

write

public void write(BintypeOutputStream byteStream,
                  com.bea.wlxt.mfl.MFLField mflField,
                  java.lang.String value)
           throws BintypeException

Overrides:

write in class Bintype

writePacked

public void writePacked(java.io.OutputStream byteStream,
                        java.math.BigDecimal value,
                        int bytes,
                        int precision,
                        int scale,
                        com.bea.wlxt.mfl.MFLField mflField)
                 throws BintypeException

Write a BigDecimal as a mainframe signed packed decimal number.

writePackedUnsigned

public void writePackedUnsigned(java.io.OutputStream byteStream,
                                java.math.BigDecimal value,
                                int bytes,
                                int precision,
                                int scale,
                                com.bea.wlxt.mfl.MFLField mflField)
                         throws BintypeException

Write a BigDecimal as a mainframe unsigned packed decimal number.

convertPacked

protected byte[] convertPacked(java.math.BigDecimal value,
                               int bytes,
                               int precision,
                               int scale,
                               byte sign,
                               com.bea.wlxt.mfl.MFLField mflField)
                        throws BintypeException

Convert a BigDecimal to a packed decimal number. This will produce a byte[] that contains the packed representation of the given BigDecimal. The packed decimal paramters relate to COBOL picture strings as follows:

 999v99   5,2,0   Normal case, 5 digits, 2 digits to right of decimal point, no scaling.
 vpp999   5,5,2   5 digits, 3 digits to right of decimal, 2 scale digits.
 999ppv   5,0,2   5 digits, 0 digits to right of decimal, 2 scale digits.
 

Parameters:

value - The value to be written.

bytes - The number of bytes that the resulting byte array should be.

precision - The number of digits to the right of the decimal point.

scale - The number of assumed zero digits.

sign - The sign nibble to place on the result.

Throws:

java.lang.ArithmeticException - If value will not fit into the specified packed number.

isPacked

public boolean isPacked(com.bea.wlxt.mfl.MFLField mflField)

isPacked

public boolean isPacked(java.lang.String dataType)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object