[MIME4J-96] Field.parse() should defer parsing until the parsed value is actually requested

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.5
• Fix Version/s: 0.6
• Assignee: Markus Wiederkehr
• Reporter: Markus Wiederkehr
• Created: 04/Jan/09 18:56
• Updated: 04/Feb/09 20:50
• Resolved: 08/Jan/09 11:57

Description

Currently the MessageBuilder invokes Field.parse() for every header field of a message. Benchmark tests have shown that this has a significant impact on performance.

For example, DateTimeField parses the Date header into a java.util.Date object regardless if this value is ever needed or not.