org.wso2.carbon.registry.core.jdbc.utils
Class VersionInputStream
java.lang.Object
java.io.InputStream
org.wso2.carbon.registry.core.jdbc.utils.VersionInputStream
- All Implemented Interfaces:
- java.io.Closeable
public class VersionInputStream
- extends java.io.InputStream
This is an implementation of an input stream, wrapping the version list content written to the
database. This stream is capable of serializing a list of versions into a stream of bytes. The
byte stream will then be stored on the database, and will be much more optimal than storing them
one by one.
The version retriever can read through such a stream of bytes and obtain the list of versions.
- See Also:
VersionRetriever
Constructor Summary |
VersionInputStream(java.util.List<java.lang.Long> versionList)
Creates a version input stream from the given list of versions. |
Method Summary |
int |
available()
Method to check whether anymore bytes are left to read. |
int |
read()
Reads the stream one by one. |
Methods inherited from class java.io.InputStream |
close, mark, markSupported, read, read, reset, skip |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
VersionInputStream
public VersionInputStream(java.util.List<java.lang.Long> versionList)
- Creates a version input stream from the given list of versions.
- Parameters:
versionList
- list of versions.
read
public int read()
throws java.io.IOException
- Reads the stream one by one.
- Specified by:
read
in class java.io.InputStream
- Returns:
- the value to be read.
- Throws:
java.io.IOException
- if an error occurs.
available
public int available()
throws java.io.IOException
- Method to check whether anymore bytes are left to read.
- Overrides:
available
in class java.io.InputStream
- Returns:
- the number of versions to be read.
- Throws:
java.io.IOException
- if an error occurs.
Copyright © 2011 WSO2 Inc. All Rights Reserved.