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How do I set separators for a string generated by uuid.hex?

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iservport

Post subject: How do I set separators for a string generated by uuid.hex?

Posted: Sun Feb 27, 2005 7:43 pm

Newbie

Joined: Fri Feb 20, 2004 9:46 am
Posts: 7
Location: Brazil

According to the Javadocs for Class UUIDHexGenerator, it is possible to set separators between each component of the UUID. How do I set this? What is the order they appear?

Hibernate version: 2.1.7

I suppose this is going to take the form:

Code:

<id name="id" type="string" unsaved-value="null" >
    <column name="id" sql-type="char(32)" not-null="true"/>
    <generator class="uuid.hex" >
        <param ???here is my question
    </generator>
</id>

Name and version of the database: Mysql 3.23.58

Thanks in advance.[/code]

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iservport

Post subject:

Posted: Mon Feb 28, 2005 7:22 am

Newbie

Joined: Fri Feb 20, 2004 9:46 am
Posts: 7
Location: Brazil

I found one of the answers myself.

From the documentation:

Quote:

The UUIDs contain: IP address, startup time of the JVM (accurate to a quarter second), system time and a counter value (unique within the JVM). It's not possible to obtain a MAC address or memory address from Java code, so this is the best we can do without using JNI.

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