Package liquibase.change.core

Class AddNotNullConstraintChange

java.lang.Object
liquibase.AbstractExtensibleObject
liquibase.plugin.AbstractPlugin
liquibase.change.AbstractChange
liquibase.change.core.AddNotNullConstraintChange
All Implemented Interfaces:
Cloneable, Change, ExtensibleObject, Plugin, LiquibaseSerializable
public class AddNotNullConstraintChange extends AbstractChange
Adds a NOT NULL constraint to an existing column.

  • Constructor Details

    • AddNotNullConstraintChange

      public AddNotNullConstraintChange()

  • Method Details

    • getCatalogName

      public String getCatalogName()

    • getSchemaName

      public String getSchemaName()

    • getTableName

      public String getTableName()

    • getColumnName

      public String getColumnName()

    • getDefaultNullValue

      public String getDefaultNullValue()

    • getColumnDataType

      public String getColumnDataType()

    • getConstraintName

      public String getConstraintName()

    • 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).

    • createInverses

      protected Change[] createInverses()
      Description copied from class: AbstractChange
      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 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:

    • 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

    • getValidate

      public Boolean getValidate()
      In certain SQL dialects, the VALIDATE keyword defines whether a NOT NULL constraint on a column in a table should be checked if it refers to a valid row or not.
      Returns:
      true if ENABLE VALIDATE (this is the default), or false if ENABLE NOVALIDATE.

    • setValidate

      public void setValidate(Boolean shouldValidate)
      Parameters:
      shouldValidate - - if shouldValidate is set to FALSE then the constraint will be created with the 'ENABLE NOVALIDATE' mode. This means the constraint would be created, but that no check will be done to ensure old data has valid not null constrain - only new data would be checked to see if it complies with the constraint logic. The default state for not null constrain is to have 'ENABLE VALIDATE' set.