org.apache.pig.impl.logicalLayer
Class LOGenerate
java.lang.Object
org.apache.pig.impl.plan.Operator<LOVisitor>
org.apache.pig.impl.logicalLayer.LogicalOperator
org.apache.pig.impl.logicalLayer.LOGenerate
- All Implemented Interfaces:
- Serializable, Cloneable, Comparable<Operator>
public class LOGenerate
- extends LogicalOperator
- See Also:
- Serialized Form
Fields inherited from class org.apache.pig.impl.plan.Operator |
mKey |
Constructor Summary |
LOGenerate(LogicalPlan plan,
OperatorKey key,
ArrayList<LogicalPlan> generatePlans,
ArrayList<Boolean> flatten)
|
LOGenerate(LogicalPlan plan,
OperatorKey key,
ArrayList<LogicalPlan> generatePlans,
ArrayList<Boolean> flatten,
ArrayList<Schema> userDefinedSchemaList)
|
LOGenerate(LogicalPlan plan,
OperatorKey key,
LogicalPlan generatePlan,
boolean flatten)
|
Methods inherited from class org.apache.pig.impl.logicalLayer.LogicalOperator |
forceSchema, getAlias, getAliasString, getCustomPartitioner, getOperatorKey, getPlan, getRequestedParallelism, getType, isPinnedOption, pinOption, reconcileSchema, regenerateSchema, setAlias, setCanonicalNames, setCustomPartitioner, setParent, setPlan, setRequestedParallelism, setSchema, setSchemaComputed, setType, supportsMultipleOutputs, toString, unsetSchema |
LOGenerate
public LOGenerate(LogicalPlan plan,
OperatorKey key,
ArrayList<LogicalPlan> generatePlans,
ArrayList<Boolean> flatten)
- Parameters:
plan
- Logical plan this operator is a part of.key
- Operator key to assign to this node.generatePlans
- Plans for each projection elementflatten
- Whether to flatten each projection element
LOGenerate
public LOGenerate(LogicalPlan plan,
OperatorKey key,
ArrayList<LogicalPlan> generatePlans,
ArrayList<Boolean> flatten,
ArrayList<Schema> userDefinedSchemaList)
LOGenerate
public LOGenerate(LogicalPlan plan,
OperatorKey key,
LogicalPlan generatePlan,
boolean flatten)
- Parameters:
plan
- Logical plan this operator is a part of.key
- Operator key to assign to this node.generatePlan
- the projection of the generateflatten
- whether the result needs to be flattened
getGeneratePlans
public List<LogicalPlan> getGeneratePlans()
getFlatten
public List<Boolean> getFlatten()
getUserDefinedSchema
public List<Schema> getUserDefinedSchema()
name
public String name()
- Specified by:
name
in class Operator<LOVisitor>
supportsMultipleInputs
public boolean supportsMultipleInputs()
- Description copied from class:
Operator
- Indicates whether this operator supports multiple inputs.
- Specified by:
supportsMultipleInputs
in class Operator<LOVisitor>
- Returns:
- true if it does, otherwise false.
getSchema
public Schema getSchema()
throws FrontendException
- Description copied from class:
LogicalOperator
- Get a copy of the schema for the output of this operator.
- Specified by:
getSchema
in class LogicalOperator
- Throws:
FrontendException
visit
public void visit(LOVisitor v)
throws VisitorException
- Description copied from class:
LogicalOperator
- Visit this node with the provided visitor. This should only be called by
the visitor class itself, never directly.
- Specified by:
visit
in class LogicalOperator
- Parameters:
v
- Visitor to visit with.
- Throws:
VisitorException
- if the visitor has a problem.
clone
protected Object clone()
throws CloneNotSupportedException
- Overrides:
clone
in class LogicalOperator
- Throws:
CloneNotSupportedException
- See Also:
Do not use the clone method directly. Operators are cloned when logical plans
are cloned using {@link LogicalPlanCloner}
Copyright © ${year} The Apache Software Foundation