liquibase.change.core

Class DropNotNullConstraintChange

java.lang.Object

liquibase.AbstractExtensibleObject

liquibase.plugin.AbstractPlugin

liquibase.change.AbstractChange

liquibase.change.core.DropNotNullConstraintChange

All Implemented Interfaces:

Cloneable, Change, ExtensibleObject, Plugin, LiquibaseSerializable

public class DropNotNullConstraintChange
extends AbstractChange

Drops a not-null constraint 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.serializer.LiquibaseSerializable

GENERIC_CHANGELOG_EXTENSION_NAMESPACE, GENERIC_SNAPSHOT_EXTENSION_NAMESPACE, STANDARD_CHANGELOG_NAMESPACE, STANDARD_SNAPSHOT_NAMESPACE

Fields inherited from interface liquibase.plugin.Plugin

PRIORITY_DEFAULT, PRIORITY_NOT_APPLICABLE, PRIORITY_SPECIALIZED

Constructor Summary

Constructors

Constructor and Description
DropNotNullConstraintChange()

Method Summary

Modifier and Type	Method and Description
ChangeStatus	checkStatus(Database database) Validate that this change executed successfully against the given database.
protected Change[]	createInverses() Create inverse changes that can roll back this change.
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	getConstraintName()
String	getSchemaName()
String	getSerializedObjectNamespace()
String	getTableName()
void	setCatalogName(String catalogName)
void	setColumnDataType(String columnDataType)
void	setColumnName(String columnName)
void	setConstraintName(String constraintName)
void	setSchemaName(String schemaName)
void	setTableName(String tableName)

Methods inherited from class liquibase.change.AbstractChange

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

Methods inherited from class liquibase.AbstractExtensibleObject

clone, describe, equals, get, get, get, getAttributes, getFieldValue, getObjectMetaData, getValuePath, has, hashCode, 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 Detail

DropNotNullConstraintChange

public DropNotNullConstraintChange()

Method Detail

getCatalogName

public String getCatalogName()

setCatalogName

public void setCatalogName(String catalogName)

getSchemaName

public String getSchemaName()

setSchemaName

public void setSchemaName(String schemaName)

getTableName

public String getTableName()

setTableName

public void setTableName(String tableName)

getColumnName

public String getColumnName()

setColumnName

public void setColumnName(String columnName)

getColumnDataType

public String getColumnDataType()

setColumnDataType

public void setColumnDataType(String columnDataType)

getConstraintName

public String getConstraintName()

setConstraintName

public void setConstraintName(String constraintName)

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

createInverses

protected Change[] createInverses()

Description copied from class: AbstractChange

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

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

Overrides:

createInverses in class AbstractChange

Returns:

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.

See Also:

#supportsRollback

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