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liquibase.change.core

public Class EmptyChange

extends AbstractChange
Class Inheritance
Annotations
@DatabaseChange
name:empty
description:empty
priority:1
Imports
liquibase.change.AbstractChange, .Change, .ChangeMetaData, .DatabaseChange, liquibase.database.Database, liquibase.statement.SqlStatement

Field Summary

Inherited from liquibase.change.AbstractChange:
NODENAME_COLUMN

Constructor Summary

AccessConstructor and Description
public
EmptyChange()

Method Summary

Modifier and TypeMethod and Description
protected Change[]
createInverses()

Overrides liquibase.change.AbstractChange.createInverses.

Create inverse changes that can roll back this change.

public SqlStatement[]
generateStatements(Database database)

Implements liquibase.change.Change.generateStatements.

Generates the SqlStatement objects required to run the change for the given database.

public String
getConfirmationMessage()

Implements liquibase.change.Change.getConfirmationMessage.

Confirmation message to be displayed after the change is executed.

public String
getSerializedObjectNamespace()

Overrides liquibase.change.AbstractChange.getSerializedObjectNamespace.

Implements liquibase.serializer.LiquibaseSerializable.getSerializedObjectNamespace.

Inherited from liquibase.change.AbstractChange:
checkStatuscreateChangeMetaDatacreateChangeParameterMetadatacreateDescriptionMetaDatacreateEmptyColumnConfigcreateExampleValueMetaDatacreateMustEqualExistingMetaDatacreateRequiredDatabasesMetaDatacreateSerializationTypeMetaDatacreateSinceMetaDatacreateSupportedDatabasesMetaDatacustomLoadLogicequalsfinishInitializationgenerateCheckSumgenerateRollbackStatementsgenerateRollbackStatementsVolatilegenerateStatementsVolatilegetAffectedDatabaseObjectsgetChangeSetgetDescriptiongetExcludedFieldFiltersgetResourceAccessorgetSerializableFieldNamespacegetSerializableFieldsgetSerializableFieldTypegetSerializableFieldValuegetSerializedObjectNamehashCodeisInvalidPropertyloadmodifyserializeserializeValuesetChangeSetsetResourceAccessorshouldExecuteChangesupportssupportsRollbacktoStringvalidatewarn

Constructor Detail

EmptyChangeback to summary
public EmptyChange()

Method Detail

createInversesback to summary
protected Change[] createInverses()

Overrides liquibase.change.AbstractChange.createInverses.

Doc from liquibase.change.AbstractChange.createInverses.

Create inverse changes that can roll back this change. This method is intended to be overridden by Change implementations that have a logical inverse operation. Default implementation returns null.

If generateRollbackStatements(liquibase.database.Database) is overridden, this method may not be called.

Returns:Change[]

Return null if there is no corresponding inverse and therefore automatic rollback is not possible. Return an empty array to have a no-op rollback.

Annotations
@Override
generateStatementsback to summary
public SqlStatement[] generateStatements(Database database)

Implements liquibase.change.Change.generateStatements.

Doc from liquibase.change.Change.generateStatements.

Generates the SqlStatement objects required to run the change for the given database.

NOTE: This method may be called multiple times throughout the changelog execution process and may be called in documentation generation and other integration points as well.

If this method reads from the current database state or uses any other logic that will be affected by whether previous changeSets have ran or not, you must return true from generateStatementsVolatile.
Annotations
@Override
getConfirmationMessageback to summary
public String getConfirmationMessage()

Implements liquibase.change.Change.getConfirmationMessage.

Doc from liquibase.change.Change.getConfirmationMessage.

Confirmation message to be displayed after the change is executed. Should include relevant configuration settings to make it as helpful as possible. This method may be called outside the changelog execution process, such as in documentation generation.

Annotations
@Override
getSerializedObjectNamespaceback to summary
public String getSerializedObjectNamespace()

Overrides liquibase.change.AbstractChange.getSerializedObjectNamespace.

Implements liquibase.serializer.LiquibaseSerializable.getSerializedObjectNamespace.

Annotations
@Override