public class MapLookupExpression extends ColumnExpression
fieldSchema, uidOnlyFieldSchema
Constructor and Description |
---|
MapLookupExpression(OperatorPlan plan,
String mapKey) |
Modifier and Type | Method and Description |
---|---|
void |
accept(PlanVisitor v)
Accept a visitor at this node in the graph.
|
LogicalExpression |
deepCopy(LogicalExpressionPlan lgExpPlan)
Create the deep copy of this expression and add that into the passed
LogicalExpressionPlan Return the copy of this expression with updated
logical expression plan.
|
LogicalSchema.LogicalFieldSchema |
getFieldSchema()
Get the field schema for the output of this expression operator.
|
String |
getLookupKey() |
LogicalExpression |
getMap() |
boolean |
isEqual(Operator other)
This is like a shallow equals comparison.
|
String |
toString() |
getNextUid, getType, hasFieldSchema, neverUseForRealSetFieldSchema, resetFieldSchema, resetNextUid, resetUid
annotate, getAnnotation, getLocation, getName, getPlan, removeAnnotation, setLocation, setPlan
public MapLookupExpression(OperatorPlan plan, String mapKey)
public void accept(PlanVisitor v) throws FrontendException
Operator
accept
in class Operator
v
- Visitor to accept.FrontendException
public boolean isEqual(Operator other) throws FrontendException
Operator
isEqual
in class Operator
FrontendException
public LogicalExpression getMap() throws FrontendException
FrontendException
public String getLookupKey()
public LogicalSchema.LogicalFieldSchema getFieldSchema() throws FrontendException
LogicalExpression
getFieldSchema
in class LogicalExpression
FrontendException
public String toString()
toString
in class LogicalExpression
public LogicalExpression deepCopy(LogicalExpressionPlan lgExpPlan) throws FrontendException
LogicalExpression
deepCopy
in class LogicalExpression
lgExpPlan
- LogicalExpressionPlan in which this expression will be added.FrontendException
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