org.apache.pig.newplan.logical.relational
Class LOFilter
java.lang.Object
org.apache.pig.newplan.Operator
org.apache.pig.newplan.logical.relational.LogicalRelationalOperator
org.apache.pig.newplan.logical.relational.LOFilter
public class LOFilter
- extends LogicalRelationalOperator
Methods inherited from class org.apache.pig.newplan.logical.relational.LogicalRelationalOperator |
checkEquality, getAlias, getCustomPartitioner, getLineNumber, getRequestedParallelism, isPinnedOption, neverUseForRealSetSchema, pinOption, resetSchema, resetUid, setAlias, setCustomPartitioner, setRequestedParallelism, setSchema, toString |
LOFilter
public LOFilter(LogicalPlan plan)
LOFilter
public LOFilter(LogicalPlan plan,
LogicalExpressionPlan filterPlan)
LOFilter
public LOFilter(LogicalPlan plan,
boolean sample)
LOFilter
public LOFilter(LogicalPlan plan,
LogicalExpressionPlan filterPlan,
boolean sample)
getFilterPlan
public LogicalExpressionPlan getFilterPlan()
setFilterPlan
public void setFilterPlan(LogicalExpressionPlan filterPlan)
isSample
public boolean isSample()
getSchema
public LogicalSchema getSchema()
throws FrontendException
- Description copied from class:
LogicalRelationalOperator
- Get the schema for the output of this relational operator. This does
not merely return the schema variable. If schema is not yet set, this
will attempt to construct it. Therefore it is abstract since each
operator will need to construct its schema differently.
- Specified by:
getSchema
in class LogicalRelationalOperator
- Returns:
- the schema
- Throws:
FrontendException
accept
public void accept(PlanVisitor v)
throws FrontendException
- Description copied from class:
Operator
- Accept a visitor at this node in the graph.
- Specified by:
accept
in class Operator
- Parameters:
v
- Visitor to accept.
- Throws:
FrontendException
isEqual
public boolean isEqual(Operator other)
throws FrontendException
- Description copied from class:
Operator
- This is like a shallow equals comparison.
It returns true if two operators have equivalent properties even if they are
different objects. Here properties mean equivalent plan and equivalent name.
- Specified by:
isEqual
in class Operator
- Returns:
- true if two object have equivalent properties, else false
- Throws:
FrontendException
getInput
public Operator getInput(LogicalPlan plan)
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