Use Java: MQMessage

MQMessage
java.lang.Object
   |
   *- com.ibm.mq.MQMessage
public class MQMessage
implements DataInput, DataOutput

MQMessage represents both the message descriptor and the data for a WebSphere MQ message. There is group of readXXX methods for reading data from a message, and a group of writeXXX methods for writing data into a message. The format of numbers and strings used by these read and write methods can be controlled by the encoding and characterSet member variables. The remaining member variables contain control information that accompanies the application message data when a message travels between sending and receiving applications. The application can set values into the member variable before putting a message to a queue and can read values after retrieving a message from a queue.

Variables
accountingToken

public byte accountingToken[]
Part of the identity context of the message; it allows an application to charge for work done as a result of the message.
The default value is MQC.MQACT_NONE.

applicationIdData

public String applicationIdData
Part of the identity context of the message; it is information that is defined by the application suite, and can be used to provide additional information about the message or its originator.
The default value is "".

applicationOriginData

public String applicationOriginData
Information defined by the application that can be used to provide additional information about the origin of the message.
The default value is "".

backoutCount

public int backoutCount
A count of the number of times the message has previously been returned by an MQQueue.get() call as part of a unit of work, and subsequently backed out.
The default value is zero.

characterSet

public int characterSet
The coded character set identifier of character data in the application message data. The behavior of the readString, readLine, and writeString methods is altered accordingly.
The default value for this field is MQC.MQCCSI_Q_MGR. If the default value is used, CharacterSet 819 (iso-8859-1/latin/ibm819) is assumed. The character set values you can use depend upon the JVM you use. Table 13 shows coded character set identifiers and the characterSet values to use:

Table 13. Character set identifiers

characterSet Description

37 ibm037

437 ibm437 / PC Original

500 ibm500

819 iso-8859-1 / latin1 / ibm819

1200 Unicode

1208 UTF-8

273 ibm273

277 ibm277

278 ibm278

280 ibm280

284 ibm284

285 ibm285

297 ibm297

420 ibm420

424 ibm424

737 ibm737 / PC Greek

775 ibm775 / PC Baltic

813 iso-8859-7 / greek / ibm813

838 ibm838

850 ibm850 / PC Latin 1

852 ibm852 / PC Latin 2

855 ibm855 / PC Cyrillic

856 ibm856

857 ibm857 / PC Turkish

860 ibm860 / PC Portuguese

861 ibm861 / PC Icelandic

862 ibm862 / PC Hebrew

863 ibm863 / PC Canadian French

864 ibm864 / PC Arabic

865 ibm865 / PC Nordic

866 ibm866 / PC Russian

868 ibm868

869 ibm869 / PC Modern Greek

870 ibm870

871 ibm871

874 ibm874

875 ibm875

912 iso-8859-2 / latin2 / ibm912

913 iso-8859-3 / latin3 / ibm913

914 iso-8859-4 / latin4 / ibm914

915 iso-8859-5 / cyrillic / ibm915

916 iso-8859-8 / hebrew / ibm916

918 ibm918

920 iso-8859-9 / latin5 / ibm920

921 ibm921

922 ibm922

930 ibm930

932 PC Japanese

933 ibm933

935 ibm935

937 ibm937

939 ibm939

942 ibm942

948 ibm948

949 ibm949

950 ibm950 / Big 5 Traditional Chinese

954 EUCJIS

964 ibm964 / CNS 11643 Traditional Chinese

970 ibm970

1006 ibm1006

1025 ibm1025

1026 ibm1026

1089 iso-8859-6 / arabic / ibm1089

1097 ibm1097

1098 ibm1098

1112 ibm1112

1122 ibm1122

1123 ibm1123

1124 ibm1124

1250 Windows Latin 2

1251 Windows Cyrillic

1252 Windows Latin 1

1253 Windows Greek

1254 Windows Turkish

1255 Windows Hebrew

1256 Windows Arabic

1257 Windows Baltic

1258 Windows Vietnamese

1381 ibm1381

1383 ibm1383

2022 JIS

5601 ksc-5601 Korean

33722 ibm33722

correlationId

public byte correlationId[]
For an MQQueue.get() call, the correlation identifier of the message to be retrieved. Normally the queue manager returns the first message with a message identifier and correlation identifier that match those specified. The special value MQC.MQCI_NONE allows any correlation identifier to match.
For an MQQueue.put() call, this specifies the correlation identifier to use.
The default value is MQC.MQCI_NONE.

encoding
public int encoding
The representation used for numeric values in the application message data; this applies to binary, packed decimal, and floating point data. The behavior of the read and write methods for these numeric formats is altered accordingly.
The following encodings are defined for binary integers:

MQC.MQENC_INTEGER_NORMAL

Big-endian integers, as in Java

MQC.MQENC_INTEGER_REVERSED

Little-endian integers, as used by PCs.

The following encodings are defined for packed-decimal integers:

MQC.MQENC_DECIMAL_NORMAL

Big-endian packed-decimal, as used by z/OS.

MQC.MQENC_DECIMAL_REVERSED

Little-endian packed-decimal.

The following encodings are defined for floating-point numbers:

MQC.MQENC_FLOAT_IEEE_NORMAL

Big-endian IEEE floats, as in Java.

MQC.MQENC_FLOAT_IEEE_REVERSED

Little-endian IEEE floats, as used by PCs.

MQC.MQENC_FLOAT_S390

z/OS format floating points.

Construct a value for the encoding field by adding together one value from each of these three sections (or using the bitwise OR operator). The default value is:
MQC.MQENC_INTEGER_NORMAL |
MQC.MQENC_DECIMAL_NORMAL |
MQC.MQENC_FLOAT_IEEE_NORMAL
For convenience, this value is also represented by MQC.MQENC_NATIVE. This setting causes writeInt() to write a big-endian integer, and readInt() to read a big-endian integer. If you set the flag MQC.MQENC_INTEGER_REVERSED flag instead, writeInt() writes a little-endian integer, and readInt() reads a little-endian integer.
A loss in precision can occur when converting from IEEE format floating points to zSeries^(R) format floating points.
expiry

public int expiry
An expiry time expressed in tenths of a second, set by the application that puts the message. After a message's expiry time has elapsed, it is eligible to be discarded by the queue manager. If the message specified one of the MQC.MQRO_EXPIRATION flags, a report is generated when the message is discarded.
The default value is MQC.MQEI_UNLIMITED, meaning that the message never expires.

feedback

public int feedback
Used with a message of type MQC.MQMT_REPORT to indicate the nature of the report. The following feedback codes are defined by the system:

MQC.MQFB_EXPIRATION
MQC.MQFB_COA
MQC.MQFB_COD
MQC.MQFB_QUIT
MQC.MQFB_PAN
MQC.MQFB_NAN
MQC.MQFB_DATA_LENGTH_ZERO
MQC.MQFB_DATA_LENGTH_NEGATIVE
MQC.MQFB_DATA_LENGTH_TOO_BIG
MQC.MQFB_BUFFER_OVERFLOW
MQC.MQFB_LENGTH_OFF_BY_ONE
MQC.MQFB_IIH_ERROR

Application-defined feedback values in the range MQC.MQFB_APPL_FIRST to MQC.MQFB_APPL_LAST can also be used.
The default value of this field is MQC.MQFB_NONE, indicating that no feedback is provided.

format

public String format
A format name used by the sender of the message to indicate the nature of the data in the message to the receiver. You can use your own format names, but names beginning with the letters MQ have meanings that are defined by the queue manager. The queue manager built-in formats are:

MQC.MQFMT_ADMIN

Command server request/reply message.

MQC.MQFMT_COMMAND_1

Type 1 command reply message.

MQC.MQFMT_COMMAND_2

Type 2 command reply message.

MQC.MQFMT_DEAD_LETTER_HEADER

Dead-letter header.

MQC.MQFMT_EVENT

Event message.

MQC.MQFMT_NONE

No format name.

MQC.MQFMT_PCF

User-defined message in programmable command format.

MQC.MQFMT_STRING

Message consisting entirely of characters.

MQC.MQFMT_TRIGGER

Trigger message

MQC.MQFMT_XMIT_Q_HEADER

Transmission queue header.

The default value is MQC.MQFMT_NONE.

groupId

public byte[] groupId
A byte string that identifies the message group to which the physical message belongs.
The default value is MQC.MQGI_NONE.

messageFlags

public int messageFlags
Flags controlling the segmentation and status of a message.

messageId

public byte messageId[]
For an MQQueue.get() call, this field specifies the message identifier of the message to be retrieved. Normally, the queue manager returns the first message with a message identifier and correlation identifier that match those specified. The special value MQC.MQMI_NONE allows any message identifier to match.
For an MQQueue.put() call, this specifies the message identifier to use. If MQC.MQMI_NONE is specified, the queue manager generates a unique message identifier when the message is put. The value of this member variable is updated after the put, to indicate the message identifier that was used.
The default value is MQC.MQMI_NONE.

messageSequenceNumber

public int messageSequenceNumber
The sequence number of a logical message within a group.

messageType

public int messageType
Indicates the type of the message. The following values are currently defined by the system:

MQC.MQMT_DATAGRAM
MQC.MQMT_REPLY
MQC.MQMT_REPORT
MQC.MQMT_REQUEST

Application-defined values can also be used, in the range MQC.MQMT_APPL_FIRST to MQC.MQMT_APPL_LAST.
The default value of this field is MQC.MQMT_DATAGRAM.

offset

public int offset
In a segmented message, the offset of data in a physical message from the start of a logical message.

originalLength

public int originalLength
The original length of a segmented message.

persistence

public int persistence
Message persistence. The following values are defined:

MQC.MQPER_NOT_PERSISTENT
MQC.MQPER_PERSISTENT
MQC.MQPER_PERSISTENCE_AS_Q_DEF

The default value is MQC.MQPER_PERSISTENCE_AS_Q_DEF, which takes the persistence for the message from the default persistence attribute of the destination queue.

priority

public int priority
The message priority. The special value MQC.MQPRI_PRIORITY_AS_Q_DEF can also be set in outbound messages, in which case the priority for the message is taken from the default priority attribute of the destination queue.
The default value is MQC.MQPRI_PRIORITY_AS_Q_DEF.

putApplicationName

public String putApplicationName
The name of the application that put the message. The default value is "".

putApplicationType

public int putApplicationType
The type of application that put the message. This can be a system-defined or user-defined value. The following values are defined by the system:

MQC.MQAT_AIX
MQC.MQAT_CICS
MQC.MQAT_DOS
MQC.MQAT_IMS
MQC.MQAT_MVS
MQC.MQAT_OS2
MQC.MQAT_OS400
MQC.MQAT_QMGR
MQC.MQAT_UNIX
MQC.MQAT_WINDOWS
MQC.MQAT_JAVA

The default value is the special value MQC.MQAT_NO_CONTEXT, which indicates that no context information is present in the message.

putDateTime

public GregorianCalendar putDateTime
The time and date that the message was put.

replyToQueueManagerName

public String replyToQueueManagerName
The name of the queue manager to which reply or report messages should be sent.
The default value is "".
If the value is "" on an MQQueue.put() call, the QueueManager fills in the value.

replyToQueueName

public String replyToQueueName
The name of the message queue to which the application that issued the get request for the message should send MQC.MQMT_REPLY and MQC.MQMT_REPORT messages.
The default value is "".

report
public int report
A report is a message about another message. This member variable enables the application sending the original message to specify which report messages are required, whether the application message data is to be included in them, and how to set the message and correlation identifiers in the report or reply. Any, all, or none of the following report types can be requested:

Exception
Expiration
Confirm on arrival
Confirm on delivery

For each type, only one of the three corresponding values below should be specified, depending on whether the application message data is to be included in the report message.

Note:

Values marked with ** in the following list are not supported by z/OS queue managers; do not use them if your application is likely to access a z/OS queue manager, regardless of the platform on which the application is running.

The valid values are:

MQC.MQRO_COA
MQC.MQRO_COA_WITH_DATA
MQC.MQRO_COA_WITH_FULL_DATA**
MQC.MQRO_COD
MQC.MQRO_COD_WITH_DATA
MQC.MQRO_COD_WITH_FULL_DATA**
MQC.MQRO_EXCEPTION
MQC.MQRO_EXCEPTION_WITH_DATA
MQC.MQRO_EXCEPTION_WITH_FULL_DATA**
MQC.MQRO_EXPIRATION
MQC.MQRO_EXPIRATION_WITH_DATA
MQC.MQRO_EXPIRATION_WITH_FULL_DATA**

You can specify one of the following to control how the message Id is generated for the report or reply message:

MQC.MQRO_NEW_MSG_ID
MQC.MQRO_PASS_MSG_ID

You can specify one of the following to control how the correlation Id of the report or reply message is to be set:

MQC.MQRO_COPY_MSG_ID_TO_CORREL_ID
MQC.MQRO_PASS_CORREL_ID

You can specify one of the following to control the disposition of the original message when it cannot be delivered to the destination queue:

MQC.MQRO_DEAD_LETTER_Q
MQC.MQRO_DISCARD_MSG **

If no report options are specified, the default is:
MQC.MQRO_NEW_MSG_ID |
MQC.MQRO_COPY_MSG_ID_TO_CORREL_ID |
MQC.MQRO_DEAD_LETTER_Q
You can specify one or both of the following to request that the receiving application sends a positive action or negative action report message.

MQRO_PAN
MQRO_NAN
userId

public String userId
Part of the identity context of the message; it identifies the user that originated this message.
The default value is "".
Constructors

MQMessage

public MQMessage()
Creates a new message with default message descriptor information and an empty message buffer.

Methods
clearMessage
public void clearMessage()
Throws IOException.
Discards any data in the message buffer and set the data offset back to zero.
getDataLength
public int getDataLength()
Throws MQException.
The number of bytes of message data remaining to be read.
getDataOffset
public int getDataOffset()
Throws IOException.
Returns the current cursor position within the message data (the point at which read and write operations take effect).
getMessageLength
public int getMessageLength
Throws IOException.
The number of bytes of message data in this MQMessage object.
getTotalMessageLength

public int getTotalMessageLength()
The total number of bytes in the message as stored on the message queue from which this message was retrieved. When an MQQueue.get() method fails with a message-truncated error code, this method tells you the total size of the message on the queue.
See also MQQueue.get.

getVersion

public int getVersion()
Returns the version of the structure in use.

readBoolean
public boolean readBoolean()
Throws IOException.
Reads a (signed) byte from the current position in the message buffer.
readChar
public char readChar()
Throws IOException, EOFException.
Reads a Unicode character from the current position in the message buffer.
readDecimal2
public short readDecimal2()
Throws IOException, EOFException.
Reads a 2-byte packed decimal number (-999 to 999). The behavior of this method is controlled by the value of the encoding member variable. A value of MQC.MQENC_DECIMAL_NORMAL reads a big-endian packed decimal number; a value of MQC.MQENC_DECIMAL_REVERSED reads a little-endian packed decimal number.
readDecimal4
public int readDecimal4()
Throws IOException, EOFException.
Reads a 4-byte packed decimal number (-9999999 to 9999999). The behavior of this method is controlled by the value of the encoding member variable. A value of MQC.MQENC_DECIMAL_NORMAL reads a big-endian packed decimal number; a value of MQC.MQENC_DECIMAL_REVERSED reads a little-endian packed decimal number.
readDecimal8
public long readDecimal8()
Throws IOException, EOFException.
Reads an 8-byte packed decimal number (-999999999999999 to 999999999999999). The behavior of this method is controlled by the encoding member variable. A value of MQC.MQENC_DECIMAL_NORMAL reads a big-endian packed decimal number; a value of MQC.MQENC_DECIMAL_REVERSED reads a little-endian packed decimal number.
readDouble
public double readDouble()
Throws IOException, EOFException.
Reads a double from the current position in the message buffer. The value of the encoding member variable determines the behavior of this method.
Values of MQC.MQENC_FLOAT_IEEE_NORMAL and MQC.MQENC_FLOAT_IEEE_REVERSED read IEEE standard doubles in big-endian and little-endian formats respectively.
A value of MQC.MQENC_FLOAT_S390 reads a System/390 format floating point number.
readFloat
public float readFloat()
Throws IOException, EOFException.
Reads a float from the current position in the message buffer. The value of the encoding member variable determines the behavior of this method.
Values of MQC.MQENC_FLOAT_IEEE_NORMAL and MQC.MQENC_FLOAT_IEEE_REVERSED read IEEE standard floats in big-endian and little-endian formats respectively.
A value of MQC.MQENC_FLOAT_S390 reads a System/390 format floating point number.
readFully
public void readFully(byte b[])
Throws Exception, EOFException.
Fills the byte array b with data from the message buffer.
readFully
public void readFully(byte b[],
                      int off,
                      int len)
Throws IOException, EOFException.
Fills len elements of the byte array b with data from the message buffer, starting at offset off.
readInt
public int readInt()
Throws IOException, EOFException.
Reads an integer from the current position in the message buffer. The value of the encoding member variable determines the behavior of this method.
A value of MQC.MQENC_INTEGER_NORMAL reads a big-endian integer; a value of MQC.MQENC_INTEGER_REVERSED reads a little-endian integer.
readInt2
public short readInt2()
Throws IOException, EOFException.
Synonym for readShort(), provided for cross-language WebSphere MQ API compatibility.
readInt4
public int readInt4()
Throws IOException, EOFException.
Synonym for readInt(), provided for cross-language WebSphere MQ API compatibility.
readInt8
public long readInt8()
Throws IOException, EOFException.
Synonym for readLong(), provided for cross-language WebSphere MQ API compatibility.
readLine
public String readLine()
Throws IOException.
Converts from the codeset identified in the characterSet member variable to Unicode, and then reads in a line that has been terminated by \n, \r, \r\n, or EOF.
readLong
public long readLong()
Throws IOException, EOFException.
Reads a long from the current position in the message buffer. The value of the encoding member variable determines the behavior of this method.
A value of MQC.MQENC_INTEGER_NORMAL reads a big-endian long; a value of MQC.MQENC_INTEGER_REVERSED reads a little-endian long.
readObject
public Object readObject()
Throws OptionalDataException, ClassNotFoundException, IOException.
Reads an object from the message buffer. The class of the object, the signature of the class, and the value of the non-transient and non-static fields of the class are all read.
readShort
public short readShort()
Throws IOException, EOFException.
Reads a short from the current position in the message buffer. The value of the encoding member variable determines the behavior of this method.
A value of MQC.MQENC_INTEGER_NORMAL reads a big-endian short; a value of MQC.MQENC_INTEGER_REVERSED reads a little-endian short.
readString
public String readString(int length)
Throws IOException, EOFException.
Reads a string in the codeset identified by the characterSet member variable, and convert it into Unicode.
Parameters:

length

The number of characters to read (which may differ from the number of bytes according to the codeset, because some codesets use more than one byte per character).
readUInt2
public int readUInt2()
Throws IOException, EOFException.
Synonym for readUnsignedShort(), provided for cross-language WebSphere MQ API compatibility.
readUnsignedByte
public int readUnsignedByte()
Throws IOException, EOFException.
Reads an unsigned byte from the current position in the message buffer.
readUnsignedShort
public int readUnsignedShort()
Throws IOException, EOFException.
Reads an unsigned short from the current position in the message buffer. The value of the encoding member variable determines the behavior of this method.
A value of MQC.MQENC_INTEGER_NORMAL reads a big-endian unsigned short; a value of MQC.MQENC_INTEGER_REVERSED reads a little-endian unsigned short.
readUTF
public String readUTF()
Throws IOException.
Reads a UTF string, prefixed by a 2-byte length field, from the current position in the message buffer.
resizeBuffer
public void resizeBuffer(int size)
Throws IOException.
A hint to the MQMessage object about the size of buffer that might be required for subsequent get operations. If the message currently contains message data, and the new size is less than the current size, the message data is truncated.
seek
public void seek(int pos)
Throws IOException.
Moves the cursor to the absolute position in the message buffer given by pos. Subsequent reads and writes act at this position in the buffer.
Throws EOFException if pos is outside the message data length.
setDataOffset
public void setDataOffset(int offset)
Throws IOException.
Moves the cursor to the absolute position in the message buffer. This method is a synonym for seek(), and is provided for cross-language compatibility with the other WebSphere MQ APIs.
setVersion
public void setVersion(int version)
Specifies which version of the structure to use. Possible values are:

MQC.MQMD_VERSION_1
MQC.MQMD_VERSION_2

You do not need to call this method unless you want to force the client to use a version 1 structure when connected to a queue manager that is capable of handling version 2 structures. In all other situations, the client determines the correct version of the structure to use by querying the queue manager's capabilities.
skipBytes
public int skipBytes(int n)
Throws IOException, EOFException.
Moves forward n bytes in the message buffer.
This method blocks until one of the following occurs:

All the bytes are skipped
The end of message buffer is detected
An exception is thrown

Returns the number of bytes skipped, which is always n.
write
public void write(int b)
Throws IOException.
Writes a byte into the message buffer at the current position.
write
public void write(byte b[])
Throws IOException.
Writes an array of bytes into the message buffer at the current position.
write
public void write(byte b[],
                  int off,
                  int len)
Throws IOException.
Writes a series of bytes into the message buffer at the current position. len bytes are written, taken from offset off in the array b.
writeBoolean
public void writeBoolean(boolean v)
Throws IOException.
Writes a boolean into the message buffer at the current position.
writeByte
public void writeByte(int v)
Throws IOException.
Writes a byte into the message buffer at the current position.
writeBytes
public void writeBytes(String s)
Throws IOException.
Writes the string to the message buffer as a sequence of bytes. Each character in the string is written in sequence by discarding its high eight bits.
writeChar
public void writeChar(int v)
Throws IOException.
Writes a Unicode character into the message buffer at the current position.
writeChars
public void writeChars(String s)
Throws IOException.
Writes a string as a sequence of Unicode characters into the message buffer at the current position.
writeDecimal2
public void writeDecimal2(short v)
Throws IOException.
Writes a 2-byte packed decimal format number into the message buffer at the current position. The value of the encoding member variable determines the behavior of this method.
A value of MQC.MQENC_DECIMAL_NORMAL writes a big-endian packed decimal; a value of MQC.MQENC_DECIMAL_REVERSED writes a little-endian packed decimal.
Parameters

v

can be in the range -999 to 999.
writeDecimal4
public void writeDecimal4(int v)
Throws IOException.
Writes a 4-byte packed decimal format number into the message buffer at the current position. The value of the encoding member variable determines the behavior of this method.
A value of MQC.MQENC_DECIMAL_NORMAL writes a big-endian packed decimal; a value of MQC.MQENC_DECIMAL_REVERSED writes a little-endian packed decimal.
Parameters

v

can be in the range -9999999 to 9999999.
writeDecimal8
public void writeDecimal8(long v)
Throws IOException.
Writes an 8-byte packed decimal format number into the message buffer at the current position. The value of the encoding member variable determines the behavior of this method.
A value of MQC.MQENC_DECIMAL_NORMAL writes a big-endian packed decimal; a value of MQC.MQENC_DECIMAL_REVERSED writes a little-endian packed decimal.
Parameters:

v

can be in the range -999999999999999 to 999999999999999.
writeDouble
public void writeDouble(double v)
Throws IOException
Writes a double into the message buffer at the current position. The value of the encoding member variable determines the behavior of this method.
Values of MQC.MQENC_FLOAT_IEEE_NORMAL and MQC.MQENC_FLOAT_IEEE_REVERSED write IEEE standard floats in big-endian and little-endian formats respectively.
A value of MQC.MQENC_FLOAT_S390 writes a System/390 format floating point number. Note that the range of IEEE doubles is greater than the range of S/390^(R) double precision floating point numbers, so very large numbers cannot be converted.
writeFloat
public void writeFloat(float v)
Throws IOException.
Writes a float into the message buffer at the current position. The value of the encoding member variable determines the behavior of this method.
Values of MQC.MQENC_FLOAT_IEEE_NORMAL and MQC.MQENC_FLOAT_IEEE_REVERSED write IEEE standard floats in big-endian and little-endian formats respectively.
A value of MQC.MQENC_FLOAT_S390 writes a System/390 format floating point number.
writeInt
public void writeInt(int v)
Throws IOException.
Writes an integer into the message buffer at the current position. The value of the encoding member variable determines the behavior of this method.
A value of MQC.MQENC_INTEGER_NORMAL writes a big-endian integer; a value of MQC.MQENC_INTEGER_REVERSED writes a little-endian integer.
writeInt2
public void writeInt2(int v)
Throws IOException.
Synonym for writeShort(), provided for cross-language WebSphere MQ API compatibility.
writeInt4
public void writeInt4(int v)
Throws IOException.
Synonym for writeInt(), provided for cross-language WebSphere MQ API compatibility.
writeInt8
public void writeInt8(long v)
Throws IOException.
Synonym for writeLong(), provided for cross-language WebSphere MQ API compatibility.
writeLong
public void writeLong(long v)
Throws IOException.
Writes a long into the message buffer at the current position. The value of the encoding member variable determines the behavior of this method.
A value of MQC.MQENC_INTEGER_NORMAL writes a big-endian long; a value of MQC.MQENC_INTEGER_REVERSED writes a little-endian long.
writeObject
public void writeObject(Object obj)
Throws IOException.
Writes the specified object to the message buffer. The class of the object, the signature of the class, and the values of the non-transient and non-static fields of the class and all its supertypes are all written.
writeShort
public void writeShort(int v)
Throws IOException.
Writes a short into the message buffer at the current position. The value of the encoding member variable determines the behavior of this method.
A value of MQC.MQENC_INTEGER_NORMAL writes a big-endian short; a value of MQC.MQENC_INTEGER_REVERSED writes a little-endian short.
writeString
public void writeString(String str)
Throws IOException.
Writes a string into the message buffer at the current position, converting it to the codeset identified by the characterSet member variable.
writeUTF
public void writeUTF(String str)
Throws IOException.
Writes a UTF string, prefixed by a 2-byte length field, into the message buffer at the current position.
WebSphere is a trademark of the IBM Corporation in the United States, other countries, or both.

IBM is a trademark of the IBM Corporation in the United States, other countries, or both.

characterSet	Description
37	ibm037
437	ibm437 / PC Original
500	ibm500
819	iso-8859-1 / latin1 / ibm819
1200	Unicode
1208	UTF-8
273	ibm273
277	ibm277
278	ibm278
280	ibm280
284	ibm284
285	ibm285
297	ibm297
420	ibm420
424	ibm424
737	ibm737 / PC Greek
775	ibm775 / PC Baltic
813	iso-8859-7 / greek / ibm813
838	ibm838
850	ibm850 / PC Latin 1
852	ibm852 / PC Latin 2
855	ibm855 / PC Cyrillic
856	ibm856
857	ibm857 / PC Turkish
860	ibm860 / PC Portuguese
861	ibm861 / PC Icelandic
862	ibm862 / PC Hebrew
863	ibm863 / PC Canadian French
864	ibm864 / PC Arabic
865	ibm865 / PC Nordic
866	ibm866 / PC Russian
868	ibm868
869	ibm869 / PC Modern Greek
870	ibm870
871	ibm871
874	ibm874
875	ibm875
912	iso-8859-2 / latin2 / ibm912
913	iso-8859-3 / latin3 / ibm913
914	iso-8859-4 / latin4 / ibm914
915	iso-8859-5 / cyrillic / ibm915
916	iso-8859-8 / hebrew / ibm916
918	ibm918
920	iso-8859-9 / latin5 / ibm920
921	ibm921
922	ibm922
930	ibm930
932	PC Japanese
933	ibm933
935	ibm935
937	ibm937
939	ibm939
942	ibm942
948	ibm948
949	ibm949
950	ibm950 / Big 5 Traditional Chinese
954	EUCJIS
964	ibm964 / CNS 11643 Traditional Chinese
970	ibm970
1006	ibm1006
1025	ibm1025
1026	ibm1026
1089	iso-8859-6 / arabic / ibm1089
1097	ibm1097
1098	ibm1098
1112	ibm1112
1122	ibm1122
1123	ibm1123
1124	ibm1124
1250	Windows Latin 2
1251	Windows Cyrillic
1252	Windows Latin 1
1253	Windows Greek
1254	Windows Turkish
1255	Windows Hebrew
1256	Windows Arabic
1257	Windows Baltic
1258	Windows Vietnamese
1381	ibm1381
1383	ibm1383
2022	JIS
5601	ksc-5601 Korean
33722	ibm33722