public abstract class BaseMaskUDF extends GenericUDF
GenericUDF.DeferredJavaObject, GenericUDF.DeferredObject
Modifier and Type | Field and Description |
---|---|
protected String |
displayName |
protected org.apache.hadoop.hive.ql.udf.generic.AbstractTransformer |
transformer |
protected org.apache.hadoop.hive.ql.udf.generic.AbstractTransformerAdapter |
transformerAdapter |
Modifier | Constructor and Description |
---|---|
protected |
BaseMaskUDF(org.apache.hadoop.hive.ql.udf.generic.AbstractTransformer transformer,
String displayName) |
Modifier and Type | Method and Description |
---|---|
Object |
evaluate(GenericUDF.DeferredObject[] arguments)
Evaluate the GenericUDF with the arguments.
|
String |
getDisplayString(String[] children)
Get the String to be displayed in explain.
|
ObjectInspector |
initialize(ObjectInspector[] arguments)
Initialize this GenericUDF.
|
checkArgGroups, checkArgPrimitive, checkArgsSize, close, configure, copyToNewInstance, flip, getArgOrder, getConstantBooleanValue, getConstantIntValue, getConstantStringValue, getDateValue, getDoubleValue, getFuncName, getIntervalDayTimeValue, getIntervalYearMonthValue, getIntValue, getLongValue, getRequiredFiles, getRequiredJars, getStandardDisplayString, getStandardDisplayString, getStringValue, getTimestampValue, getUdfName, initializeAndFoldConstants, negative, obtainDateConverter, obtainDoubleConverter, obtainIntConverter, obtainLongConverter, obtainStringConverter, obtainTimestampConverter
protected final org.apache.hadoop.hive.ql.udf.generic.AbstractTransformer transformer
protected final String displayName
protected org.apache.hadoop.hive.ql.udf.generic.AbstractTransformerAdapter transformerAdapter
protected BaseMaskUDF(org.apache.hadoop.hive.ql.udf.generic.AbstractTransformer transformer, String displayName)
public ObjectInspector initialize(ObjectInspector[] arguments) throws UDFArgumentException
GenericUDF
initialize
in class GenericUDF
arguments
- The ObjectInspector for the argumentsUDFArgumentException
- Thrown when arguments have wrong types, wrong length, etc.public Object evaluate(GenericUDF.DeferredObject[] arguments) throws HiveException
GenericUDF
evaluate
in class GenericUDF
arguments
- The arguments as DeferedObject, use DeferedObject.get() to get the
actual argument Object. The Objects can be inspected by the
ObjectInspectors passed in the initialize call.HiveException
public String getDisplayString(String[] children)
GenericUDF
getDisplayString
in class GenericUDF
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