Top Description Fields Constructors Methods
liquibase.change.core

public Class DropNotNullConstraintChange

extends AbstractChange
Class Inheritance
Annotations
@DatabaseChange
name:dropNotNullConstraint
description:Makes a column nullable
priority:1
appliesTo:column
Static Imports
liquibase.change.ChangeParameterMetaData.ALL
Drops a not-null constraint from an existing column.

Field Summary

Modifier and TypeField and Description
private String
catalogName

private String
columnDataType

private String
columnName

private String
constraintName

private String
schemaName

private Boolean
shouldValidate

private String
tableName

Inherited from liquibase.change.AbstractChange:
NODENAME_COLUMN

Constructor Summary

AccessConstructor and Description
public
DropNotNullConstraintChange()

Method Summary

Modifier and TypeMethod and Description
public ChangeStatus
checkStatus(Database database)

Overrides liquibase.change.AbstractChange.checkStatus.

Implements liquibase.change.Change.checkStatus.

Validate that this change executed successfully against the given database.

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
getCatalogName()

public String
getColumnDataType()

public String
getColumnName()

public String
getConfirmationMessage()

Implements liquibase.change.Change.getConfirmationMessage.

Confirmation message to be displayed after the change is executed.

public String
getConstraintName()

public String
getSchemaName()

public String
getSerializedObjectNamespace()

Overrides liquibase.change.AbstractChange.getSerializedObjectNamespace.

Implements liquibase.serializer.LiquibaseSerializable.getSerializedObjectNamespace.

public String
getTableName()

public void
setCatalogName(String catalogName)

public void
setColumnDataType(String columnDataType)

public void
setColumnName(String columnName)

public void
setConstraintName(String constraintName)

public void
setSchemaName(String schemaName)

public void
setTableName(String tableName)

Inherited from liquibase.change.AbstractChange:
createChangeMetaDatacreateChangeParameterMetadatacreateDescriptionMetaDatacreateEmptyColumnConfigcreateExampleValueMetaDatacreateMustEqualExistingMetaDatacreateRequiredDatabasesMetaDatacreateSerializationTypeMetaDatacreateSinceMetaDatacreateSupportedDatabasesMetaDatacustomLoadLogicequalsfinishInitializationgenerateCheckSumgenerateRollbackStatementsgenerateRollbackStatementsVolatilegenerateStatementsVolatilegetAffectedDatabaseObjectsgetChangeSetgetDescriptiongetExcludedFieldFiltersgetResourceAccessorgetSerializableFieldNamespacegetSerializableFieldsgetSerializableFieldTypegetSerializableFieldValuegetSerializedObjectNamehashCodeisInvalidPropertyloadmodifyserializeserializeValuesetChangeSetsetResourceAccessorshouldExecuteChangesupportssupportsRollbacktoStringvalidatewarn

Field Detail

catalogNameback to summary
private String catalogName
columnDataTypeback to summary
private String columnDataType
columnNameback to summary
private String columnName
constraintNameback to summary
private String constraintName
schemaNameback to summary
private String schemaName
shouldValidateback to summary
private Boolean shouldValidate
tableNameback to summary
private String tableName

Constructor Detail

DropNotNullConstraintChangeback to summary
public DropNotNullConstraintChange()

Method Detail

checkStatusback to summary
public ChangeStatus checkStatus(Database database)

Overrides liquibase.change.AbstractChange.checkStatus.

Implements liquibase.change.Change.checkStatus.

Doc from liquibase.change.Change.checkStatus.

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.

Annotations
@Override
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
getCatalogNameback to summary
public String getCatalogName()
Annotations
@DatabaseChangeProperty
since:3.0
mustEqualExisting:notNullConstraint.table.catalog
description:Name of the database catalog
getColumnDataTypeback to summary
public String getColumnDataType()
Annotations
@DatabaseChangeProperty
description:Current data type of the column
requiredForDatabase:informix, mariadb, mssql, mysql
supportsDatabase:all
getColumnNameback to summary
public String getColumnName()
Annotations
@DatabaseChangeProperty
description:Name of the column to drop the constraint from
mustEqualExisting:notNullConstraint.column
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
getConstraintNameback to summary
public String getConstraintName()
Annotations
@DatabaseChangeProperty
description:Name of the constraint to drop (if database supports names for NOT NULL constraints)
getSchemaNameback to summary
public String getSchemaName()
Annotations
@DatabaseChangeProperty
mustEqualExisting:notNullConstraint.table.schema
description:Name of the database schema
getSerializedObjectNamespaceback to summary
public String getSerializedObjectNamespace()

Overrides liquibase.change.AbstractChange.getSerializedObjectNamespace.

Implements liquibase.serializer.LiquibaseSerializable.getSerializedObjectNamespace.

Annotations
@Override
getTableNameback to summary
public String getTableName()
Annotations
@DatabaseChangeProperty
description:Name of the table containing the column to drop the constraint from
mustEqualExisting:notNullConstraint.table
setCatalogNameback to summary
public void setCatalogName(String catalogName)
setColumnDataTypeback to summary
public void setColumnDataType(String columnDataType)
setColumnNameback to summary
public void setColumnName(String columnName)
setConstraintNameback to summary
public void setConstraintName(String constraintName)
setSchemaNameback to summary
public void setSchemaName(String schemaName)
setTableNameback to summary
public void setTableName(String tableName)