public class ExampleTuple extends AbstractTuple
| Constructor and Description |
|---|
ExampleTuple() |
ExampleTuple(Object expr) |
ExampleTuple(Tuple t) |
| Modifier and Type | Method and Description |
|---|---|
void |
append(Object val)
Append a field to a tuple.
|
int |
compareTo(Object o) |
Object |
get(int fieldNum)
Get the value in a given field.
|
List<Object> |
getAll()
Get all of the fields in the tuple as a list.
|
long |
getMemorySize()
Determine the size of tuple in memory.
|
byte |
getType(int fieldNum)
Find the type of a given field.
|
boolean |
isNull(int fieldNum)
Find out if a given field is null.
|
void |
readFields(DataInput in) |
void |
reference(Tuple t)
Make this tuple reference the contents of another.
|
void |
set(int fieldNum,
Object val)
Set the value in a given field.
|
int |
size()
Find the size of the tuple.
|
String |
toString() |
Tuple |
toTuple() |
void |
write(DataOutput out) |
equals, iterator, toDelimitedStringclone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, waitforEach, spliteratorpublic ExampleTuple()
public ExampleTuple(Object expr)
public ExampleTuple(Tuple t)
public String toString()
toString in class AbstractTuplepublic void write(DataOutput out) throws IOException
IOExceptionpublic void readFields(DataInput in) throws IOException
IOExceptionpublic Tuple toTuple()
public void append(Object val)
TupleTupleFactory.newTuple(int) and then fill in the values with
Tuple.set(int, Object), rather
than construct it with TupleFactory.newTuple() and append values.val - Object to append to the tuple.public Object get(int fieldNum) throws ExecException
TuplefieldNum - Number of the field to get the value for.ExecException - if the field number is greater than or equal to
the number of fields in the tuple.public List<Object> getAll()
Tuplepublic long getMemorySize()
Tuplepublic byte getType(int fieldNum)
throws ExecException
AbstractTuplegetType in interface TuplegetType in class AbstractTuplefieldNum - Number of field to get the type for.DataType. If the field is null, then DataType.UNKNOWN
will be returned.ExecException - if the field number is greater than or equal to
the number of fields in the tuple.public boolean isNull(int fieldNum)
throws ExecException
AbstractTupleisNull in interface TupleisNull in class AbstractTuplefieldNum - Number of field to check for null.ExecException - if the field number given is greater
than or equal to the number of fields in the tuple.public void reference(Tuple t)
Tuplereference in interface Tuplereference in class AbstractTuplet - Tuple to reference.public void set(int fieldNum,
Object val)
throws ExecException
TupleTupleFactory.newTuple(int) with an
argument greater than the fieldNum being passed here. This call will
not automatically expand the tuple size. That is if you called
TupleFactory.newTuple(int) with a 2, it is okay to call
this function with a 1, but not with a 2 or greater.fieldNum - Number of the field to set the value for.val - Object to put in the indicated field.ExecException - if the field number is greater than or equal to
the number of fields in the tuple.public int size()
Tuplepublic int compareTo(Object o)
Copyright © 2007-2017 The Apache Software Foundation