com.canto.cumulus.server.esp.modules.dbmirror

Class MirroringTask

java.lang.Object

com.canto.cumulus.server.esp.modules.dbmirror.MirroringTask

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable

public class MirroringTask
extends java.lang.Object
implements java.io.Externalizable

This class represents a working task in a mirroring process. An instance can represent multiple task and table types and the parameters are used in different contexts for different table types:

• Prepare Database
  • No parameters are being used.
• Add Entry to a table
  • TABLE_TYPE_MASTER_TABLE
    • RecordName: the key for the RECORD_NAME column
    • RecordID: unused
    • data: the binary value for the RECORD_DATA column
  • TABLE_TYPE_MISC_TABLE
    • RecordName: the key for the RECORD_NAME column
    • RecordID: unused
    • data: the binary value for the RECORD_DATA column
  • TABLE_TYPE_CUE_TABLE
    • RecordName: the name of the CueTable to add the new entry to
    • RecordID: the new primary key for the new entry
    • data: the binary data representing the record
• Update Entry in a table
  • TABLE_TYPE_MASTER_TABLE
    • RecordName: the key for the RECORD_NAME column
    • RecordID: unused
    • data: the binary value for the RECORD_DATA column
  • TABLE_TYPE_MISC_TABLE
    • RecordName: the key for the RECORD_NAME column
    • RecordID: unused
    • data: the binary value for the RECORD_DATA column
  • TABLE_TYPE_CUE_TABLE
    • RecordName: the name of the CueTable where the entry is located to be updated
    • RecordID: the primary key for the entry to be updated
    • data: the binary data representing the record
• Remove Entry from a table
  • TABLE_TYPE_MASTER_TABLE
    • RecordName: the key for the RECORD_NAME column
    • RecordID: unused
    • data: unused
  • TABLE_TYPE_MISC_TABLE
    • RecordName: the key for the RECORD_NAME column
    • RecordID: unused
    • data: unused
  • TABLE_TYPE_CUE_TABLE
    • RecordName: the name of the CueTable to add the new entry to
    • RecordID: the primary key for the entry to delete
    • data: unused

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static int	TABLE_TYPE_CUE_TABLE
static int	TABLE_TYPE_MASTER_TABLE
static int	TABLE_TYPE_MISC_TABLE
static int	TASK_TYPE_ADD_ENTRY
static int	TASK_TYPE_DELETE_ENTRY
static int	TASK_TYPE_PREPARE_DB
static int	TASK_TYPE_PREPARE_DB_FINISHED
static int	TASK_TYPE_UPDATE_ENTRY

Constructor Summary

Constructors

Constructor and Description
MirroringTask() Do NOT call! Needed for Externalizable.

Method Summary

Methods

Modifier and Type	Method and Description
JPack	getData() Return the binary representation of a table entry.
int	getRecordID() Returns the primary key for an entry of a Cue Table
java.lang.String	getRecordName() Returns the primary key in a Named Table.
int	getTableType() Returns the type of the table this entry is a member of.
int	getTaskType() Returns the type of the current task.
void	readExternal(java.io.ObjectInput in) Needed for the Externalizable implementation.
java.lang.String	toString() Returns a readable string for this object.
void	writeExternal(java.io.ObjectOutput out) Needed for the Externalizable implementation.

Methods inherited from class java.lang.Object

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

Field Detail

TASK_TYPE_ADD_ENTRY

public static final int TASK_TYPE_ADD_ENTRY

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Constant Field Values

TASK_TYPE_UPDATE_ENTRY

public static final int TASK_TYPE_UPDATE_ENTRY

See Also:

Constant Field Values

TASK_TYPE_DELETE_ENTRY

public static final int TASK_TYPE_DELETE_ENTRY

See Also:

Constant Field Values

TASK_TYPE_PREPARE_DB

public static final int TASK_TYPE_PREPARE_DB

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Constant Field Values

TASK_TYPE_PREPARE_DB_FINISHED

public static final int TASK_TYPE_PREPARE_DB_FINISHED

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Constant Field Values

TABLE_TYPE_MASTER_TABLE

public static final int TABLE_TYPE_MASTER_TABLE

See Also:

Constant Field Values

TABLE_TYPE_MISC_TABLE

public static final int TABLE_TYPE_MISC_TABLE

See Also:

Constant Field Values

TABLE_TYPE_CUE_TABLE

public static final int TABLE_TYPE_CUE_TABLE

See Also:

Constant Field Values

Constructor Detail

MirroringTask

public MirroringTask()

Do NOT call! Needed for Externalizable.

Method Detail

getTaskType

public int getTaskType()

Returns the type of the current task. Can be one of the following: TASK_TYPE_ADD_ENTRY, TASK_TYPE_DELETE_ENTRY, TASK_TYPE_PREPARE_DB or TASK_TYPE_UPDATE_ENTRY.

Returns:

the type of the current task

getData

public JPack getData()

Return the binary representation of a table entry.

Returns:

binary representation of a table entry

getRecordID

public int getRecordID()

Returns the primary key for an entry of a Cue Table

Returns:

primary key in a Cue Table

getRecordName

public java.lang.String getRecordName()

Returns the primary key in a Named Table.

Returns:

the primary key in a Named Table

getTableType

public int getTableType()

Returns the type of the table this entry is a member of. Can be one of the following: TABLE_TYPE_CUE_TABLE, TABLE_TYPE_MASTER_TABLE or TABLE_TYPE_MISC_TABLE.

Returns:

table type of this entry

readExternal

public void readExternal(java.io.ObjectInput in)
                  throws java.io.IOException,
                         java.lang.ClassNotFoundException

Needed for the Externalizable implementation.

Specified by:

readExternal in interface java.io.Externalizable

Parameters:

in -

Throws:

java.io.IOException

java.lang.ClassNotFoundException

writeExternal

public void writeExternal(java.io.ObjectOutput out)
                   throws java.io.IOException

Needed for the Externalizable implementation.

Specified by:

writeExternal in interface java.io.Externalizable

Parameters:

out -

Throws:

java.io.IOException

toString

public java.lang.String toString()

Returns a readable string for this object.

Overrides:

toString in class java.lang.Object