Examples with HiveVarcharConverter org.apache.hadoop.hive.serde2.objectinspector.primitive.PrimitiveObjectInspectorConverter.HiveVarcharConverter used on opensource projects

Example 1 with HiveVarcharConverter

use of org.apache.hadoop.hive.serde2.objectinspector.primitive.PrimitiveObjectInspectorConverter.HiveVarcharConverter in project hive by apache.

the class GenericUDFToVarchar method initialize.

@Override
public ObjectInspector initialize(ObjectInspector[] arguments) throws UDFArgumentException {
    if (arguments.length != 1) {
        throw new UDFArgumentException("VARCHAR cast requires a value argument");
    }
    try {
        argumentOI = (PrimitiveObjectInspector) arguments[0];
    } catch (ClassCastException e) {
        throw new UDFArgumentException("The function VARCHAR takes only primitive types");
    }
    // Check if this UDF has been provided with type params for the output varchar type
    SettableHiveVarcharObjectInspector outputOI;
    outputOI = (SettableHiveVarcharObjectInspector) PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(typeInfo);
    converter = new HiveVarcharConverter(argumentOI, outputOI);
    return outputOI;
}