uk.org.ogsadai.activity.relational
Class PhysicalSchemaFileActivityConfiguration

java.lang.Object
  |
  +--uk.org.ogsadai.activity.relational.PhysicalSchemaFileActivityConfiguration

All Implemented Interfaces:

ActivityConfiguration

public class PhysicalSchemaFileActivityConfiguration

extends java.lang.Object

implements ActivityConfiguration

Reads a configuration document and retrieves the physical schema information.

Author:

The OGSA-DAI Project Team.

COPYRIGHT_NOTICE

private static final java.lang.String COPYRIGHT_NOTICE

Copyright statement

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Constant Field Values

ATTR_ROW_COUNT

public static final java.lang.String ATTR_ROW_COUNT

XML element and attribute names

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Constant Field Values

ATTR_ROW_FORMAT

public static final java.lang.String ATTR_ROW_FORMAT

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Constant Field Values

ATTR_AVG_ROW_SIZE

public static final java.lang.String ATTR_AVG_ROW_SIZE

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Constant Field Values

ATTR_DATA_LENGTH

public static final java.lang.String ATTR_DATA_LENGTH

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Constant Field Values

ATTR_INDEX_LENGTH

public static final java.lang.String ATTR_INDEX_LENGTH

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Constant Field Values

ATTR_NAME

public static final java.lang.String ATTR_NAME

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Constant Field Values

mTableNames

private java.util.Set mTableNames

Table names

mRowCounts

private java.util.Map mRowCounts

Number of rows in a table, mapped by table name

mRowFormat

private java.util.Map mRowFormat

Table name mapped to row format

mDataLength

private java.util.Map mDataLength

Size of a table

mIndexLength

private java.util.Map mIndexLength

Size of an index

mAvgRowLength

private java.util.Map mAvgRowLength

Average row length in a table

mMaxJoinSize

private java.lang.String mMaxJoinSize

Maximum join size in a database

mJoinBufferSize

private java.lang.String mJoinBufferSize

Size of join buffer in a database

mDatabase

private java.lang.String mDatabase

Name of the database

mName

private java.lang.String mName

Activity name

PhysicalSchemaFileActivityConfiguration

public PhysicalSchemaFileActivityConfiguration(java.lang.String name)

Constructor

Parameters:

name - Activity name

initialise

public void initialise(org.w3c.dom.Document document)
                throws ActivityConfigurationException

Description copied from interface: ActivityConfiguration

Parses the configuration document, initialising any fields that are necessary for the accessor methods to operate. This method is called by the ActivityCreator class.

Specified by:

initialise in interface ActivityConfiguration

Parameters:

document - The Document containing the activity configuration information.

Throws:

ActivityConfigurationException - If there is a problem initialising the ActivityConfiguration object. This may be caused by the document containing invalid information, or perhaps by a system problem within the initialisation code.

getTableNames

public java.util.Set getTableNames()

Get names of all tables.

Returns:

list of table names

getRowCount

public java.lang.String getRowCount(java.lang.String table)

Get the row count for a particular table.

Parameters:

table - Table name

Returns:

table row count or null if the table cannot be found or no information is available.

getRowFormat

public java.lang.String getRowFormat(java.lang.String table)

Get the row format for a particular table.

Parameters:

table - Table name

Returns:

table row format or null if the table cannot be found or the information is not available

getAverageRowLength

public java.lang.String getAverageRowLength(java.lang.String table)

Get the average length of a row in a particular table

Parameters:

table - Table name

Returns:

average row size or null if the table cannot be found or the information is not available

getDataLength

public java.lang.String getDataLength(java.lang.String table)

Get the size of a table

Parameters:

table - Table name

Returns:

table size or null if the table cannot be found or the information is not available

getIndexLength

public java.lang.String getIndexLength(java.lang.String table)

Get the size of the index of a particular table

Parameters:

table - Table name

Returns:

index size or null if the table cannot be found or the information is not available

getDatabaseName

public java.lang.String getDatabaseName()

Get the name of the database

Returns:

database name

getMaxJoinSize

public java.lang.String getMaxJoinSize()

Get the max join size for this database

Returns:

max join size

getJoinBufferSize

public java.lang.String getJoinBufferSize()

Get the join buffer size for this database

Returns:

join buffer size