net.sf.farrago.query
Class FarragoExecutableJavaStmt

java.lang.Object
  org.eigenbase.util.CompoundClosableAllocation
      net.sf.farrago.util.FarragoCompoundAllocation
          net.sf.farrago.query.FarragoExecutableStmtImpl
              net.sf.farrago.query.FarragoExecutableFennelStmt
                  net.sf.farrago.query.FarragoExecutableJavaStmt

All Implemented Interfaces:

FarragoSessionExecutableStmt, FarragoAllocation, FarragoAllocationOwner, ClosableAllocation, ClosableAllocationOwner

 class FarragoExecutableJavaStmt
extends FarragoExecutableFennelStmt

FarragoExecutableJavaStmt implements FarragoSessionExecutableStmt via a compiled Java class. It extends upon FarragoExecutableFennelStmt, which implements the Fennel portion of a statement.

NOTE: be sure to read superclass warnings before modifying this class.

Version:

$Id: //open/dev/farrago/src/net/sf/farrago/query/FarragoExecutableJavaStmt.java#31 $

Author:

John V. Sichi

Field Summary

private Map<String,RelDataType>	iterCalcTypeMap
private File	packageDir
private Map<String,RelDataType>	resultSetTypeMap
private Class	rowClass
private ClassLoader	stmtClassLoader
private Method	stmtMethod
private int	totalByteCodeSize
private List<FarragoTransformDef>	transformDefs

Fields inherited from class net.sf.farrago.query.FarragoExecutableFennelStmt

rowType, xmiFennelPlan

Fields inherited from class net.sf.farrago.query.FarragoExecutableStmtImpl

tracer

Fields inherited from class org.eigenbase.util.CompoundClosableAllocation

allocations

Constructor Summary

FarragoExecutableJavaStmt(File packageDir, Class rowClass, ClassLoader stmtClassLoader, RelDataType preparedRowType, RelDataType dynamicParamRowType, Method stmtMethod, List<FarragoTransformDef> transformDefs, String xmiFennelPlan, boolean isDml, TableModificationRelBase.Operation tableModOp, Map<String,String> referencedObjectTimestampMap, TableAccessMap tableAccessMap, Map<String,RelDataType> resultSetTypeMap, Map<String,RelDataType> iterCalcTypeMap, int totalByteCodeSize)

Method Summary

ResultSet	execute(FarragoSessionRuntimeContext runtimeContext) Executes this statement.
Map<String,RelDataType>	getIterCalcTypeMap() Map from IterCalcRel tag to row type.
long	getMemoryUsage()
Map<String,RelDataType>	getResultSetTypeMap() Map from result set name to row type.

Methods inherited from class net.sf.farrago.query.FarragoExecutableFennelStmt

getReferencedObjectIds, getReferencedObjectModTime, getRowType

Methods inherited from class net.sf.farrago.query.FarragoExecutableStmtImpl

getDynamicParamRowType, getTableAccessMap, getTableModOp, isDml

Methods inherited from class org.eigenbase.util.CompoundClosableAllocation

addAllocation, closeAllocation, forgetAllocation, hasAllocations

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eigenbase.util.ClosableAllocationOwner

addAllocation

Methods inherited from interface org.eigenbase.util.ClosableAllocation

closeAllocation

Methods inherited from interface org.eigenbase.util.ClosableAllocation

closeAllocation

Field Detail

packageDir

private final File packageDir

rowClass

private final Class rowClass

stmtClassLoader

private final ClassLoader stmtClassLoader

stmtMethod

private final Method stmtMethod

transformDefs

private final List<FarragoTransformDef> transformDefs

resultSetTypeMap

private final Map<String,RelDataType> resultSetTypeMap

iterCalcTypeMap

private final Map<String,RelDataType> iterCalcTypeMap

totalByteCodeSize

private final int totalByteCodeSize

Constructor Detail

FarragoExecutableJavaStmt

FarragoExecutableJavaStmt(File packageDir,
                          Class rowClass,
                          ClassLoader stmtClassLoader,
                          RelDataType preparedRowType,
                          RelDataType dynamicParamRowType,
                          Method stmtMethod,
                          List<FarragoTransformDef> transformDefs,
                          String xmiFennelPlan,
                          boolean isDml,
                          TableModificationRelBase.Operation tableModOp,
                          Map<String,String> referencedObjectTimestampMap,
                          TableAccessMap tableAccessMap,
                          Map<String,RelDataType> resultSetTypeMap,
                          Map<String,RelDataType> iterCalcTypeMap,
                          int totalByteCodeSize)

Method Detail

execute

public ResultSet execute(FarragoSessionRuntimeContext runtimeContext)

Description copied from interface: FarragoSessionExecutableStmt

Executes this statement.

Specified by:

execute in interface FarragoSessionExecutableStmt

Overrides:

execute in class FarragoExecutableFennelStmt

Parameters:

runtimeContext - context in which to execute

Returns:

ResultSet produced by statement

getMemoryUsage

public long getMemoryUsage()

Specified by:

getMemoryUsage in interface FarragoSessionExecutableStmt

Overrides:

getMemoryUsage in class FarragoExecutableFennelStmt

Returns:

approximate total number of bytes used by this statement's in-memory representation

getResultSetTypeMap

public Map<String,RelDataType> getResultSetTypeMap()

Description copied from interface: FarragoSessionExecutableStmt

Map from result set name to row type.

Specified by:

getResultSetTypeMap in interface FarragoSessionExecutableStmt

Overrides:

getResultSetTypeMap in class FarragoExecutableFennelStmt

getIterCalcTypeMap

public Map<String,RelDataType> getIterCalcTypeMap()

Description copied from interface: FarragoSessionExecutableStmt

Map from IterCalcRel tag to row type.

Specified by:

getIterCalcTypeMap in interface FarragoSessionExecutableStmt

Overrides:

getIterCalcTypeMap in class FarragoExecutableStmtImpl