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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, mPinnedOptions, 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,
String alias)
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Method Summary | |
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static String |
constructSignature(String alias,
String filename,
FuncSpec funcSpec)
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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. |
String |
getSignature()
|
SortInfo |
getSortInfo()
|
StoreFuncInterface |
getStoreFunc()
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String |
name()
|
void |
setAlias(String newAlias)
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void |
setInputSpec(FileSpec in)
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void |
setOutputFile(FileSpec outputFileSpec)
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void |
setSortInfo(SortInfo sortInfo)
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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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insertPlainForEachAfter, 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, isPinnedOption, pinOption, reconcileSchema, regenerateSchema, 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, String alias) 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 SortInfo getSortInfo()
public void setSortInfo(SortInfo sortInfo)
public static String constructSignature(String alias, String filename, FuncSpec funcSpec)
public FileSpec getOutputFile()
public void setOutputFile(FileSpec outputFileSpec) throws IOException
IOException
public StoreFuncInterface 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
public void setAlias(String newAlias)
setAlias
in class LogicalOperator
public String getSignature()
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