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java.lang.Objectorg.apache.pig.impl.plan.Operator<LOVisitor>
org.apache.pig.impl.logicalLayer.LogicalOperator
org.apache.pig.impl.logicalLayer.RelationalOperator
org.apache.pig.impl.logicalLayer.LOStore
public class LOStore
Field Summary |
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Fields inherited from class org.apache.pig.impl.logicalLayer.LogicalOperator |
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mAlias, mIsProjectionMapComputed, mIsSchemaComputed, mPlan, mProjectionMap, mRequestedParallelism, mSchema, mType |
Fields inherited from class org.apache.pig.impl.plan.Operator |
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mKey |
Constructor Summary | |
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LOStore(LogicalPlan plan,
OperatorKey key,
FileSpec outputFileSpec)
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Method Summary | |
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FileSpec |
getInputSpec()
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FileSpec |
getOutputFile()
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ProjectionMap |
getProjectionMap()
Produce a map describing how this operator modifies its projection. |
List<RequiredFields> |
getRelevantInputs(int output,
int column)
Get relevant input columns of a particular output column. |
List<RequiredFields> |
getRequiredFields()
Get a list of fields that this operator requires. |
Schema |
getSchema()
Get a copy of the schema for the output of this operator. |
StoreFunc |
getStoreFunc()
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String |
name()
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void |
setInputSpec(FileSpec in)
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void |
setOutputFile(FileSpec outputFileSpec)
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boolean |
supportsMultipleInputs()
Indicates whether this operator supports multiple inputs. |
boolean |
supportsMultipleOutputs()
Indicates whether this operator supports multiple outputs. |
void |
visit(LOVisitor v)
Visit this node with the provided visitor. |
Methods inherited from class org.apache.pig.impl.logicalLayer.RelationalOperator |
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pruneColumnInPlan, pruneColumns, regenerateProjectionMap, unsetProjectionMap |
Methods inherited from class org.apache.pig.impl.logicalLayer.LogicalOperator |
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clone, forceSchema, getAlias, getOperatorKey, getPlan, getRequestedParallelism, getType, reconcileSchema, regenerateSchema, setAlias, setCanonicalNames, setPlan, setRequestedParallelism, setSchema, setSchemaComputed, setType, toString, unsetSchema |
Methods inherited from class org.apache.pig.impl.plan.Operator |
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compareTo, equals, hashCode, rewire |
Methods inherited from class java.lang.Object |
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finalize, getClass, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public LOStore(LogicalPlan plan, OperatorKey key, FileSpec outputFileSpec) throws IOException
plan
- LogicalPlan this operator is a part of.key
- OperatorKey for this operatoroutputFileSpec
- the file to be stored
IOException
Method Detail |
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public FileSpec getOutputFile()
public void setOutputFile(FileSpec outputFileSpec) throws IOException
IOException
public StoreFunc getStoreFunc()
public String name()
name
in class Operator<LOVisitor>
public Schema getSchema() throws FrontendException
LogicalOperator
getSchema
in class LogicalOperator
FrontendException
public boolean supportsMultipleInputs()
Operator
supportsMultipleInputs
in class Operator<LOVisitor>
public boolean supportsMultipleOutputs()
Operator
supportsMultipleOutputs
in class LogicalOperator
public void visit(LOVisitor v) throws VisitorException
LogicalOperator
visit
in class LogicalOperator
v
- Visitor to visit with.
VisitorException
- if the visitor has a problem.public void setInputSpec(FileSpec in)
public FileSpec getInputSpec()
public ProjectionMap getProjectionMap()
RelationalOperator
getProjectionMap
in class RelationalOperator
public List<RequiredFields> getRequiredFields()
RelationalOperator
getRequiredFields
in class RelationalOperator
public List<RequiredFields> getRelevantInputs(int output, int column) throws FrontendException
RelationalOperator
getRelevantInputs
in class RelationalOperator
output
- output index. Only LOSplit have output other than 0 currentlycolumn
- output column
FrontendException
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