public class LessThanExpression extends BinaryExpression
fieldSchema, uidOnlyFieldSchema
Constructor and Description |
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LessThanExpression(OperatorPlan plan,
LogicalExpression lhs,
LogicalExpression rhs)
Will add this operator to the plan and connect it to the
left and right hand side operators.
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Modifier and Type | Method and Description |
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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.
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LogicalSchema.LogicalFieldSchema |
getFieldSchema()
Get the field schema for the output of this expression operator.
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boolean |
isEqual(Operator other)
This is like a shallow equals comparison.
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getLhs, getRhs
getNextUid, getType, hasFieldSchema, neverUseForRealSetFieldSchema, resetFieldSchema, resetNextUid, resetUid, toString
annotate, getAnnotation, getLocation, getName, getPlan, removeAnnotation, setLocation, setPlan
public LessThanExpression(OperatorPlan plan, LogicalExpression lhs, LogicalExpression rhs)
plan
- plan this operator is part oflhs
- expression on its left hand siderhs
- expression on its right hand sidepublic 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 LogicalSchema.LogicalFieldSchema getFieldSchema() throws FrontendException
LogicalExpression
getFieldSchema
in class LogicalExpression
FrontendException
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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