java.lang.Object
- migratedb.v1.core.MigrateDb

```
public class MigrateDb
extends Object
```
This is the centre point of MigrateDB, and for most users, the only class they will ever have to deal with.
It is THE public API from which all important MigrateDB functions such as validate and migrate can be called.

To get started all you need to do is create a configured MigrateDb object and then invoke its principal methods.
```
 MigrateDb migratedb = MigrateDb.configure().dataSource(url, user, password).load();
 migratedb.migrate();
 
```
Note that a configured MigrateDb object is unmodifiable.

Constructor Summary

Constructors
Constructor Description

MigrateDb(Configuration configuration)
Creates a new instance of MigrateDB with this configuration.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`BaselineResult`	`baseline()`	Baselines an existing database, excluding all migrations up to and including baselineVersion.
`static FluentConfiguration`	`configure()`	This is your starting point.
`static FluentConfiguration`	`configure(ClassLoader classLoader)`	This is your starting point.
`Configuration`	`getConfiguration()`
`MigrationInfoService`	`info()`	Retrieves the complete information about all the migrations including applied, pending and current migrations with details and status.
`LiberateResult`	`liberate()`	Converts an existing Flyway schema history into the format used by MigrateDB.
`MigrateResult`	`migrate()`	Starts the database migration.
`RepairResult`	`repair()`	Repairs the MigrateDb schema history table.
`void`	`validate()`	Validate applied migrations against resolved ones (on the filesystem or classpath) to detect accidental changes that may prevent the schema(s) from being recreated exactly.
`ValidateResult`	`validateWithResult()`	Validate applied migrations against resolved ones (on the filesystem or classpath) to detect accidental changes that may prevent the schema(s) from being recreated exactly.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - MigrateDb
```
public MigrateDb(Configuration configuration)
```
    Creates a new instance of MigrateDB with this configuration. In general the MigrateDb.configure() factory method should be preferred over this constructor, unless you need to create or reuse separate Configuration objects.
    
    Parameters:
    
    configuration - The configuration to use.
- Method Detail
  - configure
```
public static FluentConfiguration configure()
```
    This is your starting point. This creates a configuration which can be customized to your needs before being loaded into a new MigrateDb instance using the load() method.
    In its simplest form, this is how you configure MigrateDb with all defaults to get started:
    
    MigrateDb migratedb = MigrateDb.configure().dataSource(url, user, password).load();
    
    After that you have a fully-configured MigrateDb instance at your disposal which can be used to invoke MigrateDB functionality such as migrate().
    Returns:
    
    A new configuration from which MigrateDb can be loaded.
  - configure
```
public static FluentConfiguration configure(ClassLoader classLoader)
```
    This is your starting point. This creates a configuration which can be customized to your needs before being loaded into a new MigrateDb instance using the load() method.
    In its simplest form, this is how you configure MigrateDb with all defaults to get started:
    
    MigrateDb migratedb = MigrateDb.configure().dataSource(url, user, password).load();
    
    After that you have a fully-configured MigrateDb instance at your disposal which can be used to invoke MigrateDb functionality such as migrate().
    Parameters:
    
    classLoader - The class loader to use when loading classes and resources.
    
    Returns:
    
    A new configuration from which MigrateDB can be loaded.
  - getConfiguration
```
public Configuration getConfiguration()
```
    Returns:
    
    A copy of the configuration that MigrateDB is using. Modifying the returned object has no effect on the configuration used by this MigrateDB instance.
  - liberate
```
public LiberateResult liberate()
```
    Converts an existing Flyway schema history into the format used by MigrateDB. This operation does not modify the old schema history table.
    
    Returns:
    
    Summary of schema history conversion.
    
    Throws:
    
    MigrateDbException - if the conversion failed, e.g. because the schema history table used by MigrateDB already contains applied migrations.
  - migrate
```
public MigrateResult migrate()
```
    Starts the database migration. All pending migrations will be applied in order. Calling migrate on an up-to-date database has no effect.
    
    Returns:
    
    An object summarising the successfully applied migrations.
    
    Throws:
    
    MigrateDbException - when the migration failed.
  - info
```
public MigrationInfoService info()
```
    Retrieves the complete information about all the migrations including applied, pending and current migrations with details and status.
    
    Returns:
    
    All migrations sorted by version, oldest first.
    
    Throws:
    
    MigrateDbException - when the info retrieval failed.
  - validate
```
public void validate()
              throws MigrateDbException
```
    Validate applied migrations against resolved ones (on the filesystem or classpath) to detect accidental changes that may prevent the schema(s) from being recreated exactly.
    
    Validation fails if
    
    differences in migration names, types or checksums are found
    
    versions have been applied that aren't resolved locally anymore
    
    versions have been resolved that haven't been applied yet
    Throws:
    
    MigrateDbException - when the validation failed.
  - validateWithResult
```
public ValidateResult validateWithResult()
                                  throws MigrateDbException
```
    Validate applied migrations against resolved ones (on the filesystem or classpath) to detect accidental changes that may prevent the schema(s) from being recreated exactly.
    
    Validation fails if
    
    differences in migration names, types or checksums are found
    
    versions have been applied that aren't resolved locally anymore
    
    versions have been resolved that haven't been applied yet
    Returns:
    
    An object summarising the validation results
    
    Throws:
    
    MigrateDbException - when the validation failed.
  - baseline
```
public BaselineResult baseline()
                        throws MigrateDbException
```
    Baselines an existing database, excluding all migrations up to and including baselineVersion.
    
    Returns:
    
    An object summarising the actions taken
    
    Throws:
    
    MigrateDbException - when the schema baselining failed.
  - repair
```
public RepairResult repair()
                    throws MigrateDbException
```
    Repairs the MigrateDb schema history table. This will perform the following actions:
    
    Remove any failed migrations on databases without DDL transactions (User objects left behind must still be cleaned up manually)
    
    Realign the checksums, descriptions and types of the applied migrations with the ones of the available migrations
    Returns:
    
    An object summarising the actions taken
    
    Throws:
    
    MigrateDbException - when the schema history table repair failed.