Excluding HCatalog JavaDocs was a production error in some of the Hive releases after HCatalog graduated from the Apache incubator and merged with Hive, but the HCatalog API has always been public.
- Pre-merge HCatalog 0.5.0 JavaDocs are here: http://hive.apache.org/javadocs/hcat-r0.5.0/api/index.html. - The latest Hive release includes HCatalog JavaDocs: http://hive.apache.org/javadocs/r0.13.1/api/. -- Lefty On Fri, Jun 13, 2014 at 9:09 AM, Dmitry Vasilenko <dvasi...@gmail.com> wrote: > > BTW, you can also get the Hive schema and partitions (using the code from > #1) > > Table table = hiveMetastoreClient.getTable(databaseName, tableName); > List<FieldSchema> schema = hiveMetastoreClient.getSchema(databaseName, > tableName); > List<FieldSchema> partitions = table.getPartitionKeys(); > > The HCat and Hive APIs for the schema differ but for the task at hand > maybe you do not need HCatSchema... just a thought... > > > > On Fri, Jun 13, 2014 at 10:32 AM, Dmitry Vasilenko <dvasi...@gmail.com> > wrote: > >> Please take a look at >> >> http://stackoverflow.com/questions/22630323/hadoop-java-lang-incompatibleclasschangeerror-found-interface-org-apache-hadoo >> >> >> >> >> On Fri, Jun 13, 2014 at 9:53 AM, Brian Jeltema < >> brian.jelt...@digitalenvoy.net> wrote: >> >>> Doing this, with the appropriate substitutions for my table, jarClass, >>> etc: >>> >>> 2. To get the table schema... I assume that you are after HCat schema >>> >>> >>> import org.apache.hadoop.conf.Configuration; >>> import org.apache.hadoop.mapreduce.InputSplit; >>> import org.apache.hadoop.mapreduce.Job; >>> import org.apache.hadoop.mapreduce.lib.output.TextOutputFormat; >>> import org.apache.hcatalog.data.schema.HCatSchemaUtils; >>> import org.apache.hcatalog.mapreduce.HCatInputFormat; >>> import org.apache.hcatalog.mapreduce.HCatSplit; >>> import org.apache.hcatalog.mapreduce.InputJobInfo; >>> >>> >>> Job job = new Job(config); >>> job.setJarByClass(XXXXXX.class); // this will be your class >>> job.setInputFormatClass(HCatInputFormat.class); >>> job.setOutputFormatClass(TextOutputFormat.class); >>> InputJobInfo inputJobInfo = InputJobInfo.create("my_data_base", >>> "my_table", "partition filter"); >>> HCatInputFormat.setInput(job, inputJobInfo); >>> HCatSchema s = HCatInputFormat.getTableSchema(job); >>> >>> >>> results in: >>> >>> Exception in thread "main" java.lang.IncompatibleClassChangeError: Found >>> interface org.apache.hadoop.mapreduce.JobContext, but class was expected >>> at >>> org.apache.hcatalog.mapreduce.HCatBaseInputFormat.getTableSchema(HCatBaseInputFormat.java:234) >>> >>> >>> >> >
