com.altair.hwm.database.sql.protocol
Class DBSQLReqPacket

java.lang.Object
  com.altair.hwm.database.sql.protocol.DBSQLReqPacket

public class DBSQLReqPacket
extends java.lang.Object

Title: DBSQLReqPacket

Description: This class represents the request packet that will be received from the client

Company: Altair Engineering, Inc.

Field Summary

static int	CMD_DML_INSERT
static int	CMD_DML_QUERY
static int	CMD_DML_UPDATE The kind of operations that can be executed are: In DML: update, insert, delete query In DDL: create table, delete table etc.

Constructor Summary

DBSQLReqPacket()
Constructor

DBSQLReqPacket(java.lang.String strQuery, int nReqType)
Constructor

DBSQLReqPacket(java.lang.String strQuery, java.util.Vector vectParams, int nReqType)
Constructor

Method Summary

java.util.Vector	GetParams() Gets the parameters
java.lang.String	GetQueryString() Gets the query
int	GetRequestType() Gets the type of request.
void	ReadPacket(java.io.ObjectInputStream in) Reads this object from the input stream
void	SetParams(java.util.Vector vectParams) Sets the parameters
void	SetQueryString(java.lang.String strQuery) Sets the query
void	SetRequestType(int nReqType) Sets the type of request.
java.lang.String	toString() Returns the string representation of this object
void	WritePacket(java.io.ObjectOutputStream out) Writes out this object to the output stream

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

CMD_DML_UPDATE

public static final int CMD_DML_UPDATE

The kind of operations that can be executed are: In DML: update, insert, delete query In DDL: create table, delete table etc. We shall keep separate constants only for DML and one constant for all DDL

See Also:

Constant Field Values

CMD_DML_INSERT

public static final int CMD_DML_INSERT

See Also:

Constant Field Values

CMD_DML_QUERY

public static final int CMD_DML_QUERY

See Also:

Constant Field Values

Constructor Detail

DBSQLReqPacket

public DBSQLReqPacket()

Constructor

DBSQLReqPacket

public DBSQLReqPacket(java.lang.String strQuery,
                      int nReqType)

Constructor

Parameters:

strQuery - The query/update/insert etc. to execute

nReqType - The type of request

DBSQLReqPacket

public DBSQLReqPacket(java.lang.String strQuery,
                      java.util.Vector vectParams,
                      int nReqType)

Constructor

Parameters:

strQuery - The prepared statement to execute

vectParams - The vector of objects which are parameters for the prepared statement

nReqType - The type of request

Method Detail

SetQueryString

public void SetQueryString(java.lang.String strQuery)

Sets the query

Parameters:

strQuery - The query to execute

GetQueryString

public java.lang.String GetQueryString()

Gets the query

Returns:

String The query to execute

SetRequestType

public void SetRequestType(int nReqType)

Sets the type of request. If the request is of type CMD_DML_QUERY then a result set is returned. Else if the request is of type CMD_DML_INSERT, then m_nResult in the reply packet will contain the auto incremented ID.

Parameters:

nReqType -

GetRequestType

public int GetRequestType()

Gets the type of request. If the request is of type CMD_DML_QUERY then a result set is returned. Else if the request is of type CMD_DML_INSERT, then m_nResult in the reply packet will contain the auto incremented ID.

Returns:

int The request type

SetParams

public void SetParams(java.util.Vector vectParams)

Sets the parameters

Parameters:

vectParams - The vector of parameters for the prepared statement

GetParams

public java.util.Vector GetParams()

Gets the parameters

Returns:

Vector The vector of parameters for the prepared statement

toString

public java.lang.String toString()

Returns the string representation of this object

Overrides:

toString in class java.lang.Object

WritePacket

public void WritePacket(java.io.ObjectOutputStream out)
                 throws java.io.IOException

Writes out this object to the output stream

Parameters:

out - The output stream

Throws:

java.io.IOException

ReadPacket

public void ReadPacket(java.io.ObjectInputStream in)
                throws java.io.IOException,
                       java.lang.ClassNotFoundException

Reads this object from the input stream

Parameters:

in - The input stream

Throws:

java.io.IOException

java.lang.ClassNotFoundException