com.splicemachine.db.impl.sql.execute

Class ConstantActionActivation

java.lang.Object

com.splicemachine.db.impl.sql.execute.BaseActivation

com.splicemachine.db.impl.sql.execute.ConstantActionActivation

All Implemented Interfaces:

Dependable, GeneratedByteCode, Activation, Dependent, CursorActivation

public final class ConstantActionActivation
extends BaseActivation

A pre-compiled activation that supports a single ResultSet with a single constant action. All the execution logic is contained in the constant action.

At compile time for DDL statements this class will be picked as the implementation of Activation. The language PreparedStatement will contain the ConstantAction created at compiled time. At execute time this class then fetches a language ResultSet using ResultSetFactory.getDDLResultSet and executing the ResultSet will invoke the execute on the ConstantAction.

Field Summary

Fields inherited from class com.splicemachine.db.impl.sql.execute.BaseActivation

closed, cm, datasetProcessorType, dvf, ignoreSequence, indexOfSessionTableNamesInSavedObjects, materialized, numSubqueries, parentResultSets, preStmt, pvs, raParentResultSets, resultDescription, resultSet, row, scanKeys, scanStartOverride, scanStopOverride, UUIDString, UUIDValue

Fields inherited from interface com.splicemachine.db.catalog.Dependable

ACTIVATION, ALIAS, COLUMNS_IN_TABLE, COLUMNS_PERMISSION, CONGLOMERATE, CONSTRAINT, DEFAULT, FILE, HEAP, INDEX, PERM, PREPARED_STATEMENT, ROLE_GRANT, ROUTINE_PERMISSION, SCHEMA, SCHEMA_PERMISSION, SEQUENCE, STORED_PREPARED_STATEMENT, TABLE, TABLE_PERMISSION, TRIGGER, VIEW

Constructor Summary

Constructors

Constructor and Description
ConstantActionActivation()

Method Summary

Modifier and Type	Method and Description
ResultSet	execute() When the prepared statement is executed, it passes execution on to the activation execution was requested for.
int	getExecutionCount()
java.util.Vector	getRowCountCheckVector()
int	getStalePlanCheckInterval()
void	materialize()
void	postConstructor() Called by the class manager just after calling setGC().
void	setExecutionCount(int count)
void	setRowCountCheckVector(java.util.Vector v)
void	setStalePlanCheckInterval(int count)

Methods inherited from class com.splicemachine.db.impl.sql.execute.BaseActivation

addRowsSeen, addWarning, allocateQualArray, checkIfThisActivationHasHoldCursor, checkPositionedStatement, checkStatementValidity, clearCurrentRow, clearHeapConglomerateController, clearIndexScanInfo, clearParentResultSets, clearWarnings, close, closeActivationAction, datasetProcessorType, e0, e0ToString, e1, e1ToString, e2, e2ToString, e3, e3ToString, e4, e4ToString, e5, e5ToString, e6, e6ToString, e7, e7ToString, e8, e8ToString, e9, e9ToString, getAutoGeneratedKeysColumnIndexes, getAutoGeneratedKeysColumnNames, getAutoGeneratedKeysResultsetMode, getCalendar, getClassType, getColumnFromRow, getConstantAction, getContextManager, getCurrentConnection, getCurrentRow, getCurrentValueAndAdvance, getCursorName, getCursorResultSet, getDataValueFactory, getDB2Length, getDDLTableDescriptor, getDependableFinder, getDynamicResults, getExecutionFactory, getForCreateTable, getForUpdateIndexScan, getGC, getHeapConglomerateController, getIndexConglomerateNumber, getIndexScanController, getLanguageConnectionContext, getMaxDynamicResults, getMaxRows, getMethod, getNumSubqueries, getObjectID, getObjectName, getParameter, getParameterValueSet, getParentActivation, getParentResultSet, getParentResultSets, getPreparedStatement, getResultDescription, getResultSet, getResultSetFactory, getResultSetHoldability, getRowLocationTemplate, getRowsSeen, getScanKeys, getScanStartOverride, getScanStopOverride, getScrollable, getSetAutoincrementValue, getSQLSessionContextForChildren, getTargetResultSet, getTargetVTI, getTransactionController, getWarnings, ignoreSequence, initFromContext, isClosed, isCursorActivation, isInUse, isMaterialized, isPersistent, isSingleExecution, isValid, makeInvalid, markUnused, materializeResultSetIfPossible, nullToPrimitiveTest, prepareToInvalidate, reinitializeQualifiers, reset, setAutoGeneratedKeysResultsetInfo, setColumnPosition, setCurrentRow, setCursorName, setDatasetProcessorType, setDDLTableDescriptor, setForCreateTable, setForUpdateIndexScan, setGC, setHeapConglomerateController, setIgnoreSequence, setIndexConglomerateNumber, setIndexScanController, setMaxRows, setParameters, setParameterValueSet, setParentActivation, setParentResultSet, setQualifier, setResultSetHoldability, setScanKeys, setScanStartOverride, setScanStopOverride, setSingleExecution, setTargetVTI, setupActivation, setupSQLSessionContextForChildren, startExecution, throwIfClosed, throwIfMissingParms

Methods inherited from class java.lang.Object

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

Constructor Detail

ConstantActionActivation

public ConstantActionActivation()

Method Detail

getExecutionCount

public int getExecutionCount()

Specified by:

getExecutionCount in class BaseActivation

setExecutionCount

public void setExecutionCount(int count)

Specified by:

setExecutionCount in class BaseActivation

getRowCountCheckVector

public java.util.Vector getRowCountCheckVector()

Specified by:

getRowCountCheckVector in class BaseActivation

setRowCountCheckVector

public void setRowCountCheckVector(java.util.Vector v)

Specified by:

setRowCountCheckVector in class BaseActivation

getStalePlanCheckInterval

public int getStalePlanCheckInterval()

Specified by:

getStalePlanCheckInterval in class BaseActivation

setStalePlanCheckInterval

public void setStalePlanCheckInterval(int count)

Specified by:

setStalePlanCheckInterval in class BaseActivation

execute

public ResultSet execute()
                  throws StandardException

Description copied from interface: Activation

When the prepared statement is executed, it passes execution on to the activation execution was requested for.

Returns:

the ResultSet for further manipulation, if any.

Throws:

StandardException - Thrown on failure

postConstructor

public void postConstructor()

Description copied from interface: GeneratedByteCode

Called by the class manager just after calling setGC().

materialize

public void materialize()
                 throws StandardException

Throws:

StandardException