But do be aware that, as one should expect, you can get a null result from
doc.get("a") if field "a" isn't in the document. You can use
doc.getFieldsto test ahead of the fetch if you need to.
Erick
On 1/9/07, Otis Gospodnetic <[EMAIL PROTECTED]> wrote:
Yes, documents can have different fields. One document can have fields A
and B, and another document can have fields C and D.
Otis
----- Original Message ----
From: David <[EMAIL PROTECTED]>
To: java-user@lucene.apache.org
Sent: Tuesday, January 9, 2007 5:55:28 AM
Subject: can Lucene index different amount of attributes to one document?
Hi all:
I know that we can use doc.add(attr, value) to add attributes to the
document, can we add different amount of attributes to one document?
for example, can this pseudo code runnable?
public static Document Document(MyObject o)
{
Document doc = new Document();
for(i=0; i<o.attribute_len(); i++)
if(o.attributes(i).value != "") //only if the attribute exist, we
index it.
doc.add(new Field(o.attrbute(i).name, o.attrbute(i).value)
....);
}
return doc;
}
if we can do this, are there any special steps when search the on these
attributes?
Appreciate your help!
--
David
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