org.apache.hadoop.hive.ql.plan
Class TableScanDesc

java.lang.Object
  org.apache.hadoop.hive.ql.plan.AbstractOperatorDesc
      org.apache.hadoop.hive.ql.plan.TableScanDesc

All Implemented Interfaces:

Serializable, Cloneable, OperatorDesc

public class TableScanDesc
extends AbstractOperatorDesc

Table Scan Descriptor Currently, data is only read from a base source as part of map-reduce framework. So, nothing is stored in the descriptor. But, more things will be added here as table scan is invoked as part of local work.

See Also:

Serialized Form

Field Summary

static String	FILTER_EXPR_CONF_STR
static String	FILTER_TEXT_CONF_STR

Constructor Summary

TableScanDesc()

TableScanDesc(String alias)

TableScanDesc(String alias, List<VirtualColumn> vcs)

Method Summary

void	addVirtualCols(List<VirtualColumn> virtualCols)
Object	clone()
String	getAlias()
ExprNodeDesc	getFilterExpr()
List<String>	getPartColumns()
String	getStatsAggPrefix()
List<VirtualColumn>	getVirtualCols()
boolean	isGatherStats()
boolean	isStatsReliable()
void	setAlias(String alias)
void	setFilterExpr(ExprNodeDesc filterExpr)
void	setGatherStats(boolean gatherStats)
void	setPartColumns(List<String> partColumns)
void	setStatsAggPrefix(String k)
void	setStatsReliable(boolean statsReliable)
void	setVirtualCols(List<VirtualColumn> virtualCols)

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

FILTER_EXPR_CONF_STR

public static final String FILTER_EXPR_CONF_STR

See Also:

Constant Field Values

FILTER_TEXT_CONF_STR

public static final String FILTER_TEXT_CONF_STR

See Also:

Constant Field Values

Constructor Detail

TableScanDesc

public TableScanDesc()

TableScanDesc

public TableScanDesc(String alias)

TableScanDesc

public TableScanDesc(String alias,
                     List<VirtualColumn> vcs)

Method Detail

clone

public Object clone()

Specified by:

clone in interface OperatorDesc

Overrides:

clone in class AbstractOperatorDesc

getAlias

public String getAlias()

getFilterExpr

public ExprNodeDesc getFilterExpr()

setFilterExpr

public void setFilterExpr(ExprNodeDesc filterExpr)

setAlias

public void setAlias(String alias)

setPartColumns

public void setPartColumns(List<String> partColumns)

getPartColumns

public List<String> getPartColumns()

setGatherStats

public void setGatherStats(boolean gatherStats)

isGatherStats

public boolean isGatherStats()

getVirtualCols

public List<VirtualColumn> getVirtualCols()

setVirtualCols

public void setVirtualCols(List<VirtualColumn> virtualCols)

addVirtualCols

public void addVirtualCols(List<VirtualColumn> virtualCols)

setStatsAggPrefix

public void setStatsAggPrefix(String k)

getStatsAggPrefix

public String getStatsAggPrefix()

isStatsReliable

public boolean isStatsReliable()

setStatsReliable

public void setStatsReliable(boolean statsReliable)