Package liquibase.command.core.helpers

Class AbstractOutputWriterCommandStep

java.lang.Object

liquibase.command.AbstractCommandStep

liquibase.command.core.helpers.AbstractHelperCommandStep

liquibase.command.core.helpers.AbstractOutputWriterCommandStep

All Implemented Interfaces:

CleanUpCommandStep, CommandStep

Direct Known Subclasses:

OutputWriterCommandStep, ReferenceDatabaseOutputWriterCommandStep

public abstract class AbstractOutputWriterCommandStep
extends AbstractHelperCommandStep
implements CleanUpCommandStep

Field Summary

Fields inherited from class liquibase.command.AbstractCommandStep

coreBundle

Fields inherited from interface liquibase.command.CommandStep

ORDER_DEFAULT, ORDER_NOT_APPLICABLE

Constructor Summary

Constructors

Constructor	Description
AbstractOutputWriterCommandStep()

Method Summary

Modifier and Type	Method	Description
void	cleanUp(CommandResultsBuilder resultsBuilder)	Method invoked to execute the cleanup action.
String[][]	defineCommandNames()	Defines new command names For example, if it is part of `liquibase update`, this should return new String[][]{ new String[] {"update"}}.
abstract Class<?>	getDatabaseDependency()	Get the database dependency that is required by this class.
abstract Class<?>	getProvidedWriterDependency()	Get the dependency that is provided by this class.
List<Class<?>>	providedDependencies()	Returns a list of all the dependency Classes that this step provides
List<Class<?>>	requiredDependencies()	Return a list of configured Classes that this command requires to be passed as a dependency.
void	run(CommandResultsBuilder resultsBuilder)	Performs the business logic.

Methods inherited from class liquibase.command.core.helpers.AbstractHelperCommandStep

adjustCommandDefinition

Methods inherited from class liquibase.command.AbstractCommandStep

getOrder, validate

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractOutputWriterCommandStep

public AbstractOutputWriterCommandStep()

Method Detail

providedDependencies

public List<Class<?>> providedDependencies()

Description copied from interface: CommandStep

Returns a list of all the dependency Classes that this step provides

Specified by:

providedDependencies in interface CommandStep

Overrides:

providedDependencies in class AbstractCommandStep

Returns:

list with the provided classes types

getProvidedWriterDependency

public abstract Class<?> getProvidedWriterDependency()

Get the dependency that is provided by this class. In some cases this is Writer, but might be other similar classes depending on the implementation.

requiredDependencies

public List<Class<?>> requiredDependencies()

Description copied from interface: CommandStep

Return a list of configured Classes that this command requires to be passed as a dependency.

Specified by:

requiredDependencies in interface CommandStep

Overrides:

requiredDependencies in class AbstractCommandStep

Returns:

list with the required classes types

getDatabaseDependency

public abstract Class<?> getDatabaseDependency()

Get the database dependency that is required by this class.

run

public void run(CommandResultsBuilder resultsBuilder)
         throws Exception

Description copied from interface: CommandStep

Performs the business logic. This method should not be called directly. It is called by the overall pipeline logic in the CommandScope.execute() order.

Specified by:

run in interface CommandStep

Throws:

Exception

defineCommandNames

public String[][] defineCommandNames()

Description copied from interface: CommandStep

Defines new command names For example, if it is part of `liquibase update`, this should return new String[][]{ new String[] {"update"}}. If it is a part of `liquibase example init`, this should return {"example", "init"}.

This is used to determine the available command names.

This can return null if this step is not defining a new command but "cross-cutting" existing commands

Specified by:

defineCommandNames in interface CommandStep

cleanUp

public void cleanUp(CommandResultsBuilder resultsBuilder)

Description copied from interface: CleanUpCommandStep

Method invoked to execute the cleanup action.

Specified by:

cleanUp in interface CleanUpCommandStep

Parameters:

resultsBuilder - builder used in this pipeline