Class LockTableNode
java.lang.Object
org.apache.derby.impl.sql.compile.QueryTreeNode
org.apache.derby.impl.sql.compile.StatementNode
org.apache.derby.impl.sql.compile.MiscellaneousStatementNode
org.apache.derby.impl.sql.compile.LockTableNode
- All Implemented Interfaces:
Visitable
A LockTableNode is the root of a QueryTree that represents a LOCK TABLE command:
LOCK TABLE IN SHARE/EXCLUSIVE MODE
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Field Summary
FieldsModifier and TypeFieldDescriptionprivate long
private boolean
private TableDescriptor
private TableName
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
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
ConstructorsConstructorDescriptionLockTableNode
(TableName tableName, boolean exclusiveMode, ContextManager cm) -
Method Summary
Modifier and TypeMethodDescription(package private) void
Accept a visitor on all child nodes.void
Bind this LockTableNode.Create the Constant information that will drive the guts of Execution.boolean
Return true if the node references SESSION schema tables (temporary or permanent)(package private) String
toString()
Convert this object to a String.Methods inherited from class org.apache.derby.impl.sql.compile.MiscellaneousStatementNode
activationKind, generate, needsSavepoint
Methods inherited from class org.apache.derby.impl.sql.compile.StatementNode
executeSchemaName, executeStatementName, generate, getCursorInfo, getSPSName, isAtomic, lockTableForCompilation, makeResultDescription, optimizeStatement, updateIndexStatisticsFor
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, resolveTableToSynonym, setBeginOffset, setEndOffset, setRefActionInfo, stackPrint, taggedWith, treePrint, treePrint, verifyClassExist
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Field Details
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tableName
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exclusiveMode
private boolean exclusiveMode -
conglomerateNumber
private long conglomerateNumber -
lockTableDescriptor
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Constructor Details
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LockTableNode
LockTableNode(TableName tableName, boolean exclusiveMode, ContextManager cm) - Parameters:
tableName
- The table to lockexclusiveMode
- Whether or not to get an exclusive lock.cm
- Context manager
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Method Details
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toString
Convert this object to a String. See comments in QueryTreeNode.java for how this should be done for tree printing.- Overrides:
toString
in classStatementNode
- Returns:
- This object as a String
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statementToString
String statementToString()- Specified by:
statementToString
in classStatementNode
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bindStatement
Bind this LockTableNode. This means looking up the table, verifying it exists and getting the heap conglomerate number.- Overrides:
bindStatement
in classStatementNode
- Throws:
StandardException
- Thrown on error
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referencesSessionSchema
Return true if the node references SESSION schema tables (temporary or permanent)- Overrides:
referencesSessionSchema
in classQueryTreeNode
- Returns:
- true if references SESSION schema tables, else false
- Throws:
StandardException
- Thrown on error
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makeConstantAction
Create the Constant information that will drive the guts of Execution.- Overrides:
makeConstantAction
in classQueryTreeNode
- Throws:
StandardException
- Thrown on failure
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acceptChildren
Description copied from class:QueryTreeNode
Accept a visitor on all child nodes. All sub-classes that add fields that should be visited, should override this method and callaccept(v)
on all visitable fields, as well assuper.acceptChildren(v)
to make sure all visitable fields defined by the super-class are accepted too.- Overrides:
acceptChildren
in classQueryTreeNode
- Parameters:
v
- the visitor- Throws:
StandardException
- on errors raised by the visitor
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