Class SavepointNode
- java.lang.Object
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- org.apache.derby.impl.sql.compile.QueryTreeNode
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- org.apache.derby.impl.sql.compile.StatementNode
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- org.apache.derby.impl.sql.compile.DDLStatementNode
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- org.apache.derby.impl.sql.compile.SavepointNode
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- All Implemented Interfaces:
Visitable
class SavepointNode extends DDLStatementNode
A SavepointNode is the root of a QueryTree that represents a Savepoint (ROLLBACK savepoint, RELASE savepoint and SAVEPOINT) statement.
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Field Summary
Fields Modifier and Type Field Description private java.lang.String
savepointName
private int
savepointStatementType
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Fields inherited from class org.apache.derby.impl.sql.compile.DDLStatementNode
ADD_TYPE, DROP_STATISTICS, DROP_TYPE, implicitCreateSchema, LOCKING_TYPE, MODIFY_TYPE, UNKNOWN_TYPE, UPDATE_STATISTICS
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Fields inherited from class org.apache.derby.impl.sql.compile.StatementNode
EMPTY_TD_LIST, NEED_CURSOR_ACTIVATION, NEED_DDL_ACTIVATION, NEED_NOTHING_ACTIVATION, NEED_PARAM_ACTIVATION, NEED_ROW_ACTIVATION
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Fields inherited from class org.apache.derby.impl.sql.compile.QueryTreeNode
AUTOINCREMENT_CREATE_MODIFY, AUTOINCREMENT_CYCLE, AUTOINCREMENT_INC_INDEX, AUTOINCREMENT_IS_AUTOINCREMENT_INDEX, AUTOINCREMENT_START_INDEX
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Constructor Summary
Constructors Constructor Description SavepointNode(java.lang.String objectName, int savepointStatementType, ContextManager cm)
Constructor for a SavepointNode
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description ConstantAction
makeConstantAction()
Create the Constant information that will drive the guts of Execution.boolean
needsSavepoint()
Returns whether or not this Statement requires a set/clear savepoint around its execution.(package private) java.lang.String
statementToString()
java.lang.String
toString()
Convert this object to a String.-
Methods inherited from class org.apache.derby.impl.sql.compile.DDLStatementNode
acceptChildren, activationKind, generate, getFullName, getObjectName, getRelativeName, getSchemaDescriptor, getSchemaDescriptor, getTableDescriptor, getTableDescriptor, getTableDescriptor, getTableDescriptor, initAndCheck, isAtomic, makeFromList
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Methods inherited from class org.apache.derby.impl.sql.compile.StatementNode
bindStatement, executeSchemaName, executeStatementName, generate, getCursorInfo, getSPSName, lockTableForCompilation, makeResultDescription, optimizeStatement, updateIndexStatisticsFor
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Methods inherited from class org.apache.derby.impl.sql.compile.QueryTreeNode
accept, addTag, addUDTUsagePriv, addUDTUsagePriv, bindOffsetFetch, bindRowMultiSet, bindUserCatalogType, bindUserType, checkReliability, checkReliability, convertDefaultNode, copyTagsFrom, createTypeDependency, debugFlush, debugPrint, disablePrivilegeCollection, formatNodeString, generateAuthorizeCheck, getBeginOffset, getClassFactory, getCompilerContext, getContext, getContextManager, getDataDictionary, getDependencyManager, getEndOffset, getExecutionFactory, getGenericConstantActionFactory, getIntProperty, getLanguageConnectionContext, getLongProperty, getNullNode, getOffsetOrderedNodes, getOptimizerFactory, getOptimizerTracer, getParameterTypes, getSchemaDescriptor, getSchemaDescriptor, getStatementType, getTableDescriptor, getTypeCompiler, getUDTDesc, isPrivilegeCollectionRequired, isSessionSchema, isSessionSchema, makeTableName, makeTableName, nodeHeader, optimizerTracingIsOn, orReliability, parseSearchCondition, parseStatement, printLabel, printSubNodes, referencesSessionSchema, resolveTableToSynonym, setBeginOffset, setEndOffset, setRefActionInfo, stackPrint, taggedWith, treePrint, treePrint, verifyClassExist
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Constructor Detail
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SavepointNode
SavepointNode(java.lang.String objectName, int savepointStatementType, ContextManager cm) throws StandardException
Constructor for a SavepointNode- Parameters:
objectName
- The name of the savepointsavepointStatementType
- Type of savepoint statement ie rollback, release or set savepointcm
- The context manager- Throws:
StandardException
- Thrown on error
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Method Detail
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toString
public java.lang.String toString()
Convert this object to a String. See comments in QueryTreeNode.java for how this should be done for tree printing.- Overrides:
toString
in classDDLStatementNode
- Returns:
- This object as a String
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statementToString
java.lang.String statementToString()
- Specified by:
statementToString
in classStatementNode
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needsSavepoint
public boolean needsSavepoint()
Returns whether or not this Statement requires a set/clear savepoint around its execution. The following statement "types" do not require them: Cursor - unnecessary and won't work in a read only environment Xact - savepoint will get blown away underneath us during commit/rollback- Overrides:
needsSavepoint
in classStatementNode
- Returns:
- boolean Whether or not this Statement requires a set/clear savepoint
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makeConstantAction
public ConstantAction makeConstantAction() throws StandardException
Create the Constant information that will drive the guts of Execution.- Overrides:
makeConstantAction
in classQueryTreeNode
- Throws:
StandardException
- Thrown on failure
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