liquibase.resource

Class CompositeResourceAccessor

java.lang.Object

liquibase.resource.CompositeResourceAccessor

All Implemented Interfaces:

ResourceAccessor

Direct Known Subclasses:

AntResourceAccessor

public class CompositeResourceAccessor
extends java.lang.Object
implements ResourceAccessor

A FileOpener that will search in a List of other FileOpeners until it finds one that has a resource of the appropriate name and path.

Author:

Constructor Summary

Constructors

Constructor and Description
CompositeResourceAccessor(java.util.List<ResourceAccessor> openers) Creates a Composite Opener with the list specified.
CompositeResourceAccessor(ResourceAccessor... openers) Creates a CompositeFileOpener with 2 entries.

Method Summary

Methods

Modifier and Type	Method and Description
java.io.InputStream	getResourceAsStream(java.lang.String file) Searches through all of the FileOpeners in order for the file.
java.util.Enumeration<java.net.URL>	getResources(java.lang.String packageName) Searches all of the FileOpeners for a directory named packageName.
java.lang.ClassLoader	toClassLoader()
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

CompositeResourceAccessor

public CompositeResourceAccessor(java.util.List<ResourceAccessor> openers)

Creates a Composite Opener with the list specified. The List will be searched in order from beginning to end.

Parameters:

openers - The list of Openers to use

CompositeResourceAccessor

public CompositeResourceAccessor(ResourceAccessor... openers)

Creates a CompositeFileOpener with 2 entries.

Parameters:

openers - The list of Openers to use

Method Detail

getResourceAsStream

public java.io.InputStream getResourceAsStream(java.lang.String file)
                                        throws java.io.IOException

Searches through all of the FileOpeners in order for the file.

If none of the FileOpeners was able to produce a stream to the file then null is returned.

Specified by:

getResourceAsStream in interface ResourceAccessor

Throws:

java.io.IOException

getResources

public java.util.Enumeration<java.net.URL> getResources(java.lang.String packageName)
                                                 throws java.io.IOException

Searches all of the FileOpeners for a directory named packageName. If no results are found within any of the directories then an empty Enumeration is returned.

Specified by:

getResources in interface ResourceAccessor

Throws:

java.io.IOException

toClassLoader

public java.lang.ClassLoader toClassLoader()

Specified by:

toClassLoader in interface ResourceAccessor

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object