liquibase.change.core
Class DropNotNullConstraintChange

java.lang.Object
  liquibase.change.AbstractChange
      liquibase.change.core.DropNotNullConstraintChange

All Implemented Interfaces:

Change

public class DropNotNullConstraintChange
extends AbstractChange

Drops a not-null constraint from an existing column.

Constructor Summary

DropNotNullConstraintChange()

Method Summary

protected Change[]	createInverses()
SqlStatement[]	generateStatements(Database database) Generates the SQL statements required to run the change
String	getColumnDataType()
String	getColumnName()
String	getConfirmationMessage()
String	getSchemaName()
String	getTableName()
void	setColumnDataType(String columnDataType)
void	setColumnName(String columnName)
void	setSchemaName(String schemaName)
void	setTableName(String tableName)

Methods inherited from class liquibase.change.AbstractChange

generateCheckSum, generateRollbackStatements, getAffectedDatabaseObjects, getChangeLogParameters, getChangeMetaData, getChangeSet, getResourceAccessor, init, requiresUpdatedDatabaseMetadata, setChangeLogParameters, setChangeSet, setPriority, setResourceAccessor, supports, supportsRollback, validate, warn

Methods inherited from class java.lang.Object

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

Constructor Detail

DropNotNullConstraintChange

public DropNotNullConstraintChange()

Method Detail

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)

generateStatements

public SqlStatement[] generateStatements(Database database)

Description copied from interface: Change

Generates the SQL statements required to run the change

Parameters:

database - databasethe target Database associated to this change's statements

Returns:

an array of Strings with the statements

createInverses

protected Change[] createInverses()

Overrides:

createInverses in class AbstractChange

getConfirmationMessage

public String getConfirmationMessage()

Returns:

Confirmation message to be displayed after the change is executed