com.philemonworks.selfdiagnose.check
Class CheckDatabaseTableExists

java.lang.Object
  com.philemonworks.selfdiagnose.DiagnosticTask
      com.philemonworks.selfdiagnose.check.CheckDatabaseTableExists

All Implemented Interfaces:

Serializable

public class CheckDatabaseTableExists
extends DiagnosticTask

CheckDatabaseTableExists is a DiagnosticTask that verifies whether a database schema has a definition for a table. This task requires a datasource. On default, yt uses the basic COUNT(*) query to detect table presence. If found then the number of records is reported.

<checkdatabasetableexists name="BUZ.CUSTOMERS" datasource="BusinessDs" />
 

If the count(*) implies a heavy load then alternatively you can specifiy a different query name. Possible values are: IN_ALL_TABLES (Oracle), FETCH_FIRST (ANSI), COUNT (default)

<checkdatabasetableexists name="BUZ.CUSTOMERS" datasource="BusinessDs" queryname="IN_ALL_TABLES" />
 

Author:

ernest.mickei@philemonworks.com

See Also:

Serialized Form

Field Summary

Fields inherited from class com.philemonworks.selfdiagnose.DiagnosticTask

comment, PARAMETER_COMMENT, PARAMETER_REPORT, PARAMETER_VARIABLE, reportResults, requestor, variableName

Constructor Summary

CheckDatabaseTableExists()

Method Summary

String	getDatasource()
String	getDescription() Return the description of this task.
String	getQuery()
String	getQueryTemplate()
String	getTableName()
void	initializeFromAttributes(Attributes attributes) This method is sent from the SelfDiagnoseHandler when a configuration is being processed.
void	run(ExecutionContext ctx, DiagnosticTaskResult result) Run the task.
void	setDatasource(String datasource)
void	setQueryTemplate(String queryTemplate)
void	setTableName(String tableName)
void	setUp(ExecutionContext ctx) Override this method to verify that task parameters are initialized/set correctly.

Methods inherited from class com.philemonworks.selfdiagnose.DiagnosticTask

createResult, getComment, getDefaultReportTemplate, getRequestor, getTaskName, getVariableName, hasComment, isReportResults, run, run, setComment, setReportResults, setRequestor, setVariableName

Methods inherited from class java.lang.Object

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

Constructor Detail

CheckDatabaseTableExists

public CheckDatabaseTableExists()

Method Detail

getDescription

public String getDescription()

Return the description of this task.

Specified by:

getDescription in class DiagnosticTask

Returns:

String the description

setUp

public void setUp(ExecutionContext ctx)
           throws DiagnoseException

Description copied from class: DiagnosticTask

Override this method to verify that task parameters are initialized/set correctly.

Overrides:

setUp in class DiagnosticTask

Parameters:

ctx - ExecutionContext

Throws:

DiagnoseException

run

public void run(ExecutionContext ctx,
                DiagnosticTaskResult result)
         throws DiagnoseException

Description copied from class: DiagnosticTask

Run the task. If an error is detected then raise a DiagnoseException. Otherwise use the result object to the report any messages when a run is completed.

Specified by:

run in class DiagnosticTask

Parameters:

ctx - ExecutionContext

result - DiagnosticTaskResult

Throws:

DiagnoseException

initializeFromAttributes

public void initializeFromAttributes(Attributes attributes)

Description copied from class: DiagnosticTask

This method is sent from the SelfDiagnoseHandler when a configuration is being processed. Use the passed attributes to initialize the receiver. If a variable parameter is passed then store it.

Overrides:

initializeFromAttributes in class DiagnosticTask

Parameters:

attributes - org.xml.sax.Attributes

getQuery

public String getQuery()

getDatasource

public String getDatasource()

setDatasource

public void setDatasource(String datasource)

getTableName

public String getTableName()

setTableName

public void setTableName(String tableName)

getQueryTemplate

public String getQueryTemplate()

setQueryTemplate

public void setQueryTemplate(String queryTemplate)