[Hibernate] help creating an ID Generator
Hello. I am trying to find a decent reference on the archives of how to create my own ID generator. I have to create a string based on a date formula with some other parameters. I was hoping someone could point me in the right direction for generating a funny looking string for an ID. Do I create a Type first? Which Generator class/interface should I extend/implement? I'll keep reading the archives, and hopefully I'll have figured it out before the answer comes back. ;) Charlie --- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnkkid=110944bid=241720dat=121642 ___ hibernate-devel mailing list hibernate-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/hibernate-devel
Re: [Hibernate] help creating an ID Generator
Ok. This makes sense. That was what I was getting from that page as well. How about this though... Part of the string that I am creating as the ID is part of the request I am making in the browser. 06-Q1-105-55-01 YEAR - QUARTER - PASSED_VALUE - DAY_OF_YEAR - REQUEST_#_OF_DAY How do I pass a value as one of the parameters? id name=id type=string column=po_number generator class=com.alloy.finance.PONumberGenerator param name=budgetCode/param /generator /id Is that possible? If so, I would love to know how. :) Charlie hamed shayan said the following on 2/28/2006 12:24 PM: Dear Charlie, Look here: 5.1.4.1 http://5.1.4.1. Generator The optional generator child element names a Java class used to generate unique identifiers for instances of the persistent class. If any parameters are required to configure or initialize the generator instance, they are passed using the param element. id name=id type=long column=cat_id generator class=org.hibernate.id.TableHiLoGenerator param name=tableuid_table/param param name=columnnext_hi_value_column/param /generator /id All generators implement the interface org.hibernate.id.IdentifierGenerator. This is a very simple interface; some applications may choose to provide their own specialized implementations. However, Hibernate provides a range of built-in implementations. You can find the above passage in here : http://www.hibernate.org/hib_docs/v3/reference/en/html/mapping.html Sincerely Yours, Hamed Shayan --- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnkkid=110944bid=241720dat=121642 ___ hibernate-devel mailing list hibernate-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/hibernate-devel
Re: [Hibernate] help creating an ID Generator
Guys this is the dev mailing list, not the user forum. Charles Harvey III wrote: Ok. This makes sense. That was what I was getting from that page as well. How about this though... Part of the string that I am creating as the ID is part of the request I am making in the browser. 06-Q1-105-55-01 YEAR - QUARTER - PASSED_VALUE - DAY_OF_YEAR - REQUEST_#_OF_DAY How do I pass a value as one of the parameters? id name=id type=string column=po_number generator class=com.alloy.finance.PONumberGenerator param name=budgetCode/param /generator /id Is that possible? If so, I would love to know how. :) Charlie hamed shayan said the following on 2/28/2006 12:24 PM: Dear Charlie, Look here: 5.1.4.1 http://5.1.4.1. Generator The optional generator child element names a Java class used to generate unique identifiers for instances of the persistent class. If any parameters are required to configure or initialize the generator instance, they are passed using the param element. id name=id type=long column=cat_id generator class=org.hibernate.id.TableHiLoGenerator param name=tableuid_table/param param name=columnnext_hi_value_column/param /generator /id All generators implement the interface org.hibernate.id.IdentifierGenerator. This is a very simple interface; some applications may choose to provide their own specialized implementations. However, Hibernate provides a range of built-in implementations. You can find the above passage in here : http://www.hibernate.org/hib_docs/v3/reference/en/html/mapping.html Sincerely Yours, Hamed Shayan --- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnkkid=110944bid=241720dat=121642 ___ hibernate-devel mailing list hibernate-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/hibernate-devel --- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnkkid=110944bid=241720dat=121642 ___ hibernate-devel mailing list hibernate-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/hibernate-devel
[Hibernate] Hibernate 3.2 alpha1 released
Hibernate 3.2 alpha1 has just been released. The distribution can be obtained at http://sourceforge.net/project/showfiles.php?group_id=40712package_id=1 27784release_id=397557 There are some significant enhancements with this release so be sure to check the change-log. The biggest changes included pluggability of byte-code providers (cglib and javassist now supported) and integration with JBossCache's new optimistic locking features; in addition, 3.2 will be the basis for EJB3 persistence support moving forward, so work is being wrapped up there to ensure full compliance with the latest spec. --- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnkkid0944bid$1720dat1642 ___ hibernate-devel mailing list hibernate-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/hibernate-devel
[Hibernate] setfirstResult() / setMaxResult() and collection fetching
Wouldn't it be possible to implement that through a scrollable resultset when a collection fetch is involved. This would limit the amount of data in memory. --- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnkkid=110944bid=241720dat=121642 ___ hibernate-devel mailing list hibernate-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/hibernate-devel
RE: [Hibernate] setfirstResult() / setMaxResult() and collection fetching
You could, and actually most of the needed code is already in place due to the feature of scrolling collection fetches. The main problem there is that it *only* works (in terms of what you are trying to achieve) provided you know for certain that the results are ordered correctly (namely, they must be ordered by the owning entity primarily such that all possible rows for a given owner are contiguous within the result set). And what about polymorphic queries? The cleanest solution is to fall back to subselect fetching in these cases; which, of course, has its own implementation difficulties. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Emmanuel Bernard Sent: Tuesday, February 28, 2006 7:12 PM To: Hibernate development Subject: [Hibernate] setfirstResult() / setMaxResult() and collection fetching Wouldn't it be possible to implement that through a scrollable resultset when a collection fetch is involved. This would limit the amount of data in memory. --- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnkkid=110944bid=241720dat=121642 ___ hibernate-devel mailing list hibernate-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/hibernate-devel --- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnkkid0944bid$1720dat1642 ___ hibernate-devel mailing list hibernate-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/hibernate-devel
