Package liquibase.change.core

Class DropDefaultValueChange

java.lang.Object

liquibase.AbstractExtensibleObject

liquibase.plugin.AbstractPlugin

liquibase.change.AbstractChange

liquibase.change.core.DropDefaultValueChange

All Implemented Interfaces:

Cloneable, Change, ExtensibleObject, Plugin, LiquibaseSerializable

public class DropDefaultValueChange
extends AbstractChange

Removes the default value from an existing column.

Nested Class Summary

Nested classes/interfaces inherited from interface liquibase.serializer.LiquibaseSerializable

LiquibaseSerializable.SerializationType

Field Summary

Fields inherited from class liquibase.change.AbstractChange

NODENAME_COLUMN

Fields inherited from interface liquibase.change.Change

EMPTY_CHANGE, SHOULD_EXECUTE

Fields inherited from interface liquibase.serializer.LiquibaseSerializable

GENERIC_CHANGELOG_EXTENSION_NAMESPACE, GENERIC_SNAPSHOT_EXTENSION_NAMESPACE, STANDARD_CHANGELOG_NAMESPACE, STANDARD_SNAPSHOT_NAMESPACE

Fields inherited from interface liquibase.plugin.Plugin

PRIORITY_DATABASE, PRIORITY_DEFAULT, PRIORITY_NOT_APPLICABLE, PRIORITY_SPECIALIZED

Constructor Summary

Constructors

Constructor	Description
DropDefaultValueChange()

Method Summary

Modifier and Type	Method	Description
ChangeStatus	checkStatus(Database database)	Validate that this change executed successfully against the given database.
SqlStatement[]	generateStatements(Database database)	Generates the SqlStatement objects required to run the change for the given database.
String	getCatalogName()
String	getColumnDataType()
String	getColumnName()
String	getConfirmationMessage()	Confirmation message to be displayed after the change is executed.
String	getSchemaName()
String	getSerializedObjectNamespace()
String	getTableName()

Methods inherited from class liquibase.change.AbstractChange

createAlternateParameterNames, createChangeMetaData, createChangeParameterMetadata, createDescriptionMetaData, createEmptyColumnConfig, createExampleValueMetaData, createInverses, createMustEqualExistingMetaData, createRequiredDatabasesMetaData, createSerializationTypeMetaData, createSinceMetaData, createSupportedDatabasesMetaData, customLoadLogic, equals, finishInitialization, generateCheckSum, generateRollbackStatements, generateRollbackStatementsVolatile, generateStatementsVolatile, getAffectedDatabaseObjects, getChangeSet, getDescription, getExcludedFieldFilters, getResourceAccessor, getSerializableFieldNamespace, getSerializableFields, getSerializableFieldType, getSerializableFieldValue, getSerializedObjectName, hashCode, isInvalidProperty, load, modify, serialize, serializeValue, setChangeSet, setResourceAccessor, shouldExecuteChange, supports, supportsRollback, toString, validate, warn

Methods inherited from class liquibase.AbstractExtensibleObject

clone, describe, get, get, get, getAttributes, getFieldValue, getObjectMetaData, getValuePath, has, set

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface liquibase.ExtensibleObject

clone, describe, get, get, getAttributes, getObjectMetaData, getValuePath, has, set

Constructor Details

DropDefaultValueChange

public DropDefaultValueChange()

Method Details

getCatalogName

public String getCatalogName()

getSchemaName

public String getSchemaName()

getTableName

public String getTableName()

getColumnName

public String getColumnName()

getColumnDataType

public String getColumnDataType()

generateStatements

public SqlStatement[] generateStatements(Database database)

Description copied from interface: Change

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 Change.generateStatementsVolatile(liquibase.database.Database).

checkStatus

public ChangeStatus checkStatus(Database database)

Description copied from interface: Change

Validate that this change executed successfully against the given database. This will check that the update completed at a high level plus check details of the change. For example, a change to add a column will check that the column exists plus data type, default values, etc.

Specified by:

checkStatus in interface Change

Overrides:

checkStatus in class AbstractChange

getConfirmationMessage

public String getConfirmationMessage()

Description copied from interface: Change

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.

getSerializedObjectNamespace

public String getSerializedObjectNamespace()

Specified by:

getSerializedObjectNamespace in interface LiquibaseSerializable

Overrides:

getSerializedObjectNamespace in class AbstractChange