saffron.rel.convert
Class ArrayConverter
java.lang.Object
|
+--saffron.rel.Rel
|
+--saffron.rel.SingleRel
|
+--saffron.rel.convert.Converter
|
+--saffron.rel.convert.ArrayConverter
- public class ArrayConverter
- extends Converter
An ArrayConverter
converts a plan from
inConvention
to CallingConvention.ARRAY
.
Nested classes inherited from class saffron.rel.Rel |
|
Methods inherited from class saffron.rel.Rel |
computeDigest, getChildExps, getCluster, getCorelVariable, getEnvironment, getId, getInput, getOrCreateCorelVariable, getParentEnv, getQualifier, getQuery, getRelTypeName, getRows, getRowType, getTable, getType, getVariablesStopped, implementExp, implementExps, implementFieldAccess, implementSelf, isAccessTo, isDistinct, onRegister, recomputeDigest, register, registerCorelVariable, setCorelVariable, toString |
var_v
Variable var_v
ArrayConverter
public ArrayConverter(Cluster cluster,
Rel child)
clone
public Object clone()
- Specified by:
clone
in class Rel
getConvention
public CallingConvention getConvention()
- Description copied from class:
Rel
- Returns a value from
CallingConvention
.
- Overrides:
getConvention
in class Rel
init
public static void init(Planner planner)
implement
public Object implement(Implementor implementor,
int ordinal)
- Description copied from class:
Rel
- Create a plan for this expression according to a calling convention.
- Overrides:
implement
in class Converter
- Parameters:
implementor
- implementorordinal
- indicates our position in the pre-, in- and postfix walk
over the tree; ordinal
is -1 when called from the
parent, and i
when called from the
i
th child.
implementVector
private Object implementVector(Implementor implementor,
int ordinal)
implementCollection
private Object implementCollection(Implementor implementor,
int ordinal)