liquibase.change.core
Class DropNotNullConstraintChange

java.lang.Object
  extended by liquibase.change.AbstractChange
      extended by liquibase.change.core.DropNotNullConstraintChange
All Implemented Interfaces:
Change, 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 interface liquibase.serializer.LiquibaseSerializable
GENERIC_CHANGELOG_EXTENSION_NAMESPACE, GENERIC_SNAPSHOT_EXTENSION_NAMESPACE, STANDARD_CHANGELOG_NAMESPACE, STANDARD_SNAPSHOT_NAMESPACE
 
Constructor Summary
DropNotNullConstraintChange()
           
 
Method Summary
 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 getSchemaName()
           
 String getSerializedObjectNamespace()
           
 String getTableName()
           
 void setCatalogName(String catalogName)
           
 void setColumnDataType(String columnDataType)
           
 void setColumnName(String columnName)
           
 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 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

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)

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.

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


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