org.apache.pig.impl.eval
Class StarSpec
java.lang.Object
org.apache.pig.impl.eval.EvalSpec
org.apache.pig.impl.eval.StarSpec
- All Implemented Interfaces:
- Serializable
public final class StarSpec
- extends EvalSpec
- See Also:
- Serialized Form
Methods inherited from class org.apache.pig.impl.eval.EvalSpec |
addSpec, copy, finish, getCombiner, getComparator, getComparatorName, getLineage, getOutputSchemaForPipe, getProperties, instantiateFunc, isAsynchronous, isFlattened, isInner, setComparatorName, setFlatten, setInner, setLineageTracer, setSchema, setupPipe, simpleEval |
StarSpec
public StarSpec()
toString
public String toString()
- Overrides:
toString
in class Object
getFuncs
public List<String> getFuncs()
- Description copied from class:
EvalSpec
- Get the functions required by this spec
- Specified by:
getFuncs
in class EvalSpec
- Returns:
setupDefaultPipe
protected DataCollector setupDefaultPipe(Properties properties,
DataCollector endOfPipe)
- Description copied from class:
EvalSpec
- set up a default data processing pipe for processing by this spec
This pipe does not include unflattening/flattening at the end
- Specified by:
setupDefaultPipe
in class EvalSpec
- Parameters:
properties
- properties for the pipeendOfPipe
- The collector where output is desired
- Returns:
- The collector where input tuples should be put
mapInputSchema
protected Schema mapInputSchema(Schema input)
- Description copied from class:
EvalSpec
- Given an input schema, determine the output schema of this spec
as it operates on input tuples with the input schema.
- Specified by:
mapInputSchema
in class EvalSpec
- Returns:
visit
public void visit(EvalSpecVisitor v)
- Specified by:
visit
in class EvalSpec
Copyright © ${year} The Apache Software Foundation