org.apache.james.mailrepository
Class MimeMessageJDBCSource

java.lang.Object
  |
  +--org.apache.james.core.MimeMessageSource
        |
        +--org.apache.james.mailrepository.MimeMessageJDBCSource

public class MimeMessageJDBCSource

extends MimeMessageSource

This class points to a specific message in a repository. This will return an InputStream to the JDBC field/record, possibly sequenced with the file stream.

Constructor Summary

MimeMessageJDBCSource(JDBCMailRepository repository, String key, StreamRepository sr)
Construct a MimeMessageSource based on a JDBC repository, a key, and a stream repository (where we might store the message body)

Method Summary

boolean	equals(Object obj) Check to see whether this is the same repository and the same key
InputStream	getInputStream() Return the input stream to the database field and then the file stream.
long	getMessageSize() Runs a custom SQL statement to check the size of the message body
String	getSourceId() Returns a unique String ID that represents the location from where this source is loaded.
int	hashCode() Provide a hash code that is consistent with equals for this class

Methods inherited from class java.lang.Object

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

Constructor Detail

MimeMessageJDBCSource

public MimeMessageJDBCSource(JDBCMailRepository repository,
                             String key,
                             StreamRepository sr)
                      throws IOException

Construct a MimeMessageSource based on a JDBC repository, a key, and a stream repository (where we might store the message body)

Method Detail

getSourceId

public String getSourceId()

Returns a unique String ID that represents the location from where this source is loaded. This will be used to identify where the data is, primarily to avoid situations where this data would get overwritten.

Specified by:

getSourceId in class MimeMessageSource

Returns:

the String ID

getInputStream

public InputStream getInputStream()
                           throws IOException

Return the input stream to the database field and then the file stream. This should be smart enough to work even if the file does not exist. This is to support a repository with the entire message in the database, which is how James 1.2 worked.

Specified by:

getInputStream in class MimeMessageSource

Returns:

a InputStream containing the data

Throws:

IOException - if an error occurs while generating the InputStream

getMessageSize

public long getMessageSize()
                    throws IOException

Runs a custom SQL statement to check the size of the message body

Overrides:

getMessageSize in class MimeMessageSource

Returns:

the size of the data represented by this source

Throws:

IOException - if an error is encountered while computing the message size

equals

public boolean equals(Object obj)

Check to see whether this is the same repository and the same key

Overrides:

equals in class Object

hashCode

public int hashCode()

Provide a hash code that is consistent with equals for this class

Overrides:

hashCode in class Object

Returns:

the hash code