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Subject: Clarification of getSchema()#getIndexNamed(fieldName) in Avro 1.7.5
 Java API
From: Lewis John Mcgibbney <lewis.mcgibbney@gmail.com>
To: user@avro.apache.org
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Hi Folks,
I have the following UNION field

{"name": "url", "type": ["null","string"], "default":null},

Once I've generated the Persistent class, I set a vlue for this field as
follows

page.setUrl(new Utf8("example.org"));

When however I attempt to get the field position of the URL UNION with

int fieldIndex = persistent.getSchema().getIndexNamed(fieldName);

I am thrown an org.apache.avro.AvroRuntimeException: Not a union
{"type":"record","name":"WebPage",... blah blahblah ... "default":null}]}

However if I do

int fieldIndex = persistent.getSchema().getField(fieldName).pos();

This works perfectly fine...

I've looked at this in my debugger for a bit and can't find a solution
right now. Any ideas please?
Thank you in advance
Lewis

-- 
*Lewis*

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Content-Type: text/html; charset=ISO-8859-1
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<div dir=3D"ltr"><div><div><div><div><div><div>Hi Folks,<br></div>I have th=
e following UNION field<br><br>{&quot;name&quot;: &quot;url&quot;, &quot;ty=
pe&quot;: [&quot;null&quot;,&quot;string&quot;], &quot;default&quot;:null},=
<br>
<br>Once I&#39;ve generated the Persistent class, I set a vlue for this fie=
ld as follows<br><br>page.setUrl(new Utf8(&quot;<a href=3D"http://example.o=
rg">example.org</a>&quot;));<br><br></div>When however I attempt to get the=
 field position of the URL UNION with<br>
<br>int fieldIndex =3D persistent.getSchema().getIndexNamed(fieldName); <br=
><br>I am thrown an org.apache.avro.AvroRuntimeException: Not a union {&quo=
t;type&quot;:&quot;record&quot;,&quot;name&quot;:&quot;WebPage&quot;,... bl=
ah blahblah ... &quot;default&quot;:null}]}<br>
<br></div>However if I do <br><br>int fieldIndex =3D persistent.getSchema()=
.getField(fieldName).pos();<br><br></div>This works perfectly fine...<br><b=
r></div>I&#39;ve looked at this in my debugger for a bit and can&#39;t find=
 a solution right now. Any ideas please?<br>
</div>Thank you in advance<br>Lewis<br clear=3D"all"><div><div><div><div><d=
iv><div><div><div><div><br>-- <br><font style=3D"font-family:courier new,mo=
nospace;background-color:rgb(255,255,255);color:rgb(51,102,255)" size=3D"4"=
><i>Lewis</i></font><span style=3D"background-color:rgb(255,255,255);color:=
rgb(51,102,255)"></span> <br>

</div></div></div></div></div></div></div></div></div></div>

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