Package liquibase.snapshot

Class SnapshotGeneratorChain

java.lang.Object

liquibase.snapshot.SnapshotGeneratorChain

public class SnapshotGeneratorChain
extends Object

Constructor Summary

Constructors

Constructor	Description
SnapshotGeneratorChain(SortedSet<SnapshotGenerator> snapshotGenerators)

Method Summary

Modifier and Type	Method	Description
SnapshotGenerator	getNextValidGenerator()
<T extends DatabaseObject> T	snapshot(T example, DatabaseSnapshot snapshot)	This calls all the non-replaced SnapshotGenerator in the chain, by comparison order Only the first generator in the chain is allowed to create a new instance of T Subsequent generators must modify the instance or call the chain if the provided object is not handled, otherwise a DatabaseException is thrown

Methods inherited from class java.lang.Object

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

Constructor Details

SnapshotGeneratorChain

public SnapshotGeneratorChain(SortedSet<SnapshotGenerator> snapshotGenerators)

Method Details

snapshot

public <T extends DatabaseObject> T snapshot(T example,
 DatabaseSnapshot snapshot)
                                      throws DatabaseException,
InvalidExampleException

This calls all the non-replaced SnapshotGenerator in the chain, by comparison order Only the first generator in the chain is allowed to create a new instance of T Subsequent generators must modify the instance or call the chain if the provided object is not handled, otherwise a DatabaseException is thrown

Returns:

snapshot object

Throws:

DatabaseException - if any of the subsequent generators return an instance different from the first generator's invocation result

InvalidExampleException

See Also:

• to skip generators that do not comply to the above requireemnts

getNextValidGenerator

public SnapshotGenerator getNextValidGenerator()