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Java Source Code / Java Documentation » Database DBMS » db derby 10.2 » org.apache.derby.iapi.sql.compile

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Class Diagram

Java Document (Java Doc)

org.apache.derby.iapi.sql.compile .CompilerContext

All known Subclasses:   org.apache.derby.impl.sql.compile .CompilerContextImpl,
CompilerContext
public interface CompilerContext extends Context(Code)
CompilerContext stores the parser and type id factory to be used by the compiler. Stack compiler contexts when a new, local parser is needed (if calling the compiler recursively from within the compiler, for example). CompilerContext objects are private to a LanguageConnectionContext.
author:
   ames
author:
   History:
author:
   5/22/97 Moved getExternalInterfaceFactory() to LanguageConnectionContext
author:
   because it had to be used at execution. - Jeff

Field Summary
final public static int CHECK_CONSTRAINT

final public static int COLUMN_REFERENCE_ILLEGAL

String CONTEXT_ID
     this is the ID we expect compiler contexts to be stored into a context manager under.
final public static int CURRENT_CONNECTION_ILLEGAL

final public static int DATETIME_ILLEGAL

final public static int DEFAULT_RESTRICTION

final public static int DIAGNOSTICS_ILLEGAL

final public static int FUNCTION_CALL_ILLEGAL

final public static int IGNORE_MISSING_CLASSES

final public static int INTERNAL_SQL_ILLEGAL

final public static int INTERNAL_SQL_LEGAL

final public static int MODIFIES_SQL_DATA_PROCEDURE_ILLEGAL
     Calling procedures that modify sql data from before triggers is illegal.
final public static int SCHEMA_ILLEGAL

final public static int SQL_LEGAL

final public static int SUBQUERY_ILLEGAL

final public static int UNNAMED_PARAMETER_ILLEGAL

final public static int USER_ILLEGAL


Method Summary
public void addRequiredColumnPriv(ColumnDescriptor column)
     Add a column privilege to the list of used column privileges.
public void addRequiredRoutinePriv(AliasDescriptor routine)
     Add a routine execute privilege to the list of used routine privileges.
public void addRequiredSchemaPriv(String schema, String aid, int privType)
     Add a schema privilege to the list of used privileges.
public void addRequiredTablePriv(TableDescriptor table)
     Add a table or view privilege to the list of used table privileges.
int addSavedObject(Object o)
     Add an object to the pool that is created at compile time and used at execution time.
public void addWarning(SQLWarning warning)
     Add a compile time warning.
void createDependency(Provider p)
     Add a dependency for the current dependent.
public void createDependency(Dependent d, Provider p)
     Add a dependency between two objects.
public void firstOnStack()
     Mark this CompilerContext as the first on the stack, so we can avoid continually popping and pushing a CompilerContext.
ClassFactory getClassFactory()
     Return the class factory to use in this compilation.
public SchemaDescriptor getCompilationSchema()
     Get the compilation schema descriptor for this compilation context. Will be null if no default schema lookups have occured.
ProviderList getCurrentAuxiliaryProviderList()
     Get the current auxiliary provider list from this CompilerContext.
public Object getCursorInfo()
     Get the cursor info stored in the context.
public int getEntryIsolationLevel()
     Get the entry isolation level from this CC.
public boolean getInUse()
     Return the in use state for the compiler context.
JavaFactory getJavaFactory()
     Get the JavaFactory from this CompilerContext.
int getNextColumnNumber()
     Get the current next column number (for generated column names) from this CompilerContext.
public int getNextEquivalenceClass()
     Get the next equivalence class for equijoin clauses.
int getNextResultSetNumber()
     Get the current next ResultSet number from this CompilerContext.
int getNextSubqueryNumber()
     Get the current next subquery number from this CompilerContext.
int getNextTableNumber()
     Get the current next table number from this CompilerContext.
NodeFactory getNodeFactory()
     Get the NodeFactory from this CompilerContext.
int getNumResultSets()
     Get the number of Results in the current statement from this CompilerContext.
int getNumSubquerys()
     Get the number of subquerys in the current statement from this CompilerContext.
int getNumTables()
     Get the number of tables in the current statement from this CompilerContext.
public Vector getParameterList()
     Get the parameter list.
public DataTypeDescriptor[] getParameterTypes()
     Get the array of DataTypeDescriptor representing the types of the ? parameters.
Parser getParser()
     Get the Parser from this CompilerContext.
public int getReliability()
     Return the reliability requirements of this clause.
public List getRequiredPermissionsList()

public boolean getReturnParameterFlag()
     Is the callable statement uses ? for return parameter.
Object[] getSavedObjects()
     Get the saved object pool (for putting into the prepared statement).
public int getScanIsolationLevel()
     Get the isolation level for the scans in this query.
public SortCostController getSortCostController()
     Get a SortCostController.
public StoreCostController getStoreCostController(long conglomerateNumber)
     Get a StoreCostController for the given conglomerate.
TypeCompilerFactory getTypeCompilerFactory()
     Get the TypeCompilerFactory from this CompilerContext.
String getUniqueClassName()
     Get a unique Class name from this CompilerContext.
public SQLWarning getWarnings()
     Get the chain of compile time warnings.
public boolean isFirstOnStack()

public void popCurrentPrivType()

public void pushCurrentPrivType(int privType)
     Sets the current privilege type context and pushes the previous on onto a stack. Column and table nodes do not know how they are being used.
void resetContext()
     Reset compiler context (as for instance, when we recycle a context for use by another compilation.
void resetNextResultSetNumber()
     Reset the next ResultSet number from this CompilerContext.
public SchemaDescriptor setCompilationSchema(SchemaDescriptor newDefault)
     Set the compilation schema descriptor for this compilation context.
void setCurrentAuxiliaryProviderList(ProviderList apl)
     Set the current auxiliary provider list for this CompilerContext.
void setCurrentDependent(Dependent d)
     Set the current dependent from this CompilerContext.
public void setCursorInfo(Object cursorInfo)

public void setEntryIsolationLevel(int isolationLevel)
     Set the isolation level on entry to this CC so that it can be restored on exit.
public void setInUse(boolean inUse)
     Set the in use state for the compiler context.
public void setParameterList(Vector parameterList)
     Set the parameter list.
public void setReliability(int reliability)
     Sets which kind of query fragments are NOT allowed.
public void setReturnParameterFlag()

public void setSavedObjects(Object[] objs)
     Set the saved object pool (for putting into the prepared statement).
public void setScanIsolationLevel(int isolationLevel)
     Set the isolation level for the scans in this query.

Field Detail
CHECK_CONSTRAINT
final public static int CHECK_CONSTRAINT(Code)

COLUMN_REFERENCE_ILLEGAL
final public static int COLUMN_REFERENCE_ILLEGAL(Code)

CONTEXT_ID
String CONTEXT_ID(Code)
this is the ID we expect compiler contexts to be stored into a context manager under.

CURRENT_CONNECTION_ILLEGAL
final public static int CURRENT_CONNECTION_ILLEGAL(Code)

DATETIME_ILLEGAL
final public static int DATETIME_ILLEGAL(Code)

DEFAULT_RESTRICTION
final public static int DEFAULT_RESTRICTION(Code)

DIAGNOSTICS_ILLEGAL
final public static int DIAGNOSTICS_ILLEGAL(Code)

FUNCTION_CALL_ILLEGAL
final public static int FUNCTION_CALL_ILLEGAL(Code)

IGNORE_MISSING_CLASSES
final public static int IGNORE_MISSING_CLASSES(Code)

INTERNAL_SQL_ILLEGAL
final public static int INTERNAL_SQL_ILLEGAL(Code)

INTERNAL_SQL_LEGAL
final public static int INTERNAL_SQL_LEGAL(Code)
Any SQL we support is legal

MODIFIES_SQL_DATA_PROCEDURE_ILLEGAL
final public static int MODIFIES_SQL_DATA_PROCEDURE_ILLEGAL(Code)
Calling procedures that modify sql data from before triggers is illegal.

SCHEMA_ILLEGAL
final public static int SCHEMA_ILLEGAL(Code)

SQL_LEGAL
final public static int SQL_LEGAL(Code)
Standard SQL is legal

SUBQUERY_ILLEGAL
final public static int SUBQUERY_ILLEGAL(Code)

UNNAMED_PARAMETER_ILLEGAL
final public static int UNNAMED_PARAMETER_ILLEGAL(Code)

USER_ILLEGAL
final public static int USER_ILLEGAL(Code)

Method Detail
addRequiredColumnPriv
public void addRequiredColumnPriv(ColumnDescriptor column)(Code)
Add a column privilege to the list of used column privileges.
Parameters:
  column -

addRequiredRoutinePriv
public void addRequiredRoutinePriv(AliasDescriptor routine)(Code)
Add a routine execute privilege to the list of used routine privileges.
Parameters:
  routine -

addRequiredSchemaPriv
public void addRequiredSchemaPriv(String schema, String aid, int privType)(Code)
Add a schema privilege to the list of used privileges.
Parameters:
  schema - Schema name of the object that is being accessed
Parameters:
  aid - Requested authorizationId for new schema
Parameters:
  privType - CREATE_SCHEMA_PRIV, MODIFY_SCHEMA_PRIV or DROP_SCHEMA_PRIV

addRequiredTablePriv
public void addRequiredTablePriv(TableDescriptor table)(Code)
Add a table or view privilege to the list of used table privileges.
Parameters:
  table -

addSavedObject
int addSavedObject(Object o)(Code)
Add an object to the pool that is created at compile time and used at execution time. Use the integer to reference it in execution constructs. Execution code will have to generate:
(#objectType) (this.getPreparedStatement().getSavedObject(#int)) <\pre>
Parameters:
  o - object to add to the pool of saved objects the entry # for the object

addWarning
public void addWarning(SQLWarning warning)(Code)
Add a compile time warning.

createDependency
void createDependency(Provider p) throws StandardException(Code)
Add a dependency for the current dependent.
Parameters:
  p - The Provider of the dependency.
exception:
  StandardException - thrown on failure.

createDependency
public void createDependency(Dependent d, Provider p) throws StandardException(Code)
Add a dependency between two objects.
Parameters:
  d - The Dependent object.
Parameters:
  p - The Provider of the dependency.
exception:
  StandardException - thrown on failure.

firstOnStack
public void firstOnStack()(Code)
Mark this CompilerContext as the first on the stack, so we can avoid continually popping and pushing a CompilerContext.

getClassFactory
ClassFactory getClassFactory()(Code)
Return the class factory to use in this compilation.

getCompilationSchema
public SchemaDescriptor getCompilationSchema()(Code)
Get the compilation schema descriptor for this compilation context. Will be null if no default schema lookups have occured. Ie. the statement is independent of the current schema. the compilation schema descirptor

getCurrentAuxiliaryProviderList
ProviderList getCurrentAuxiliaryProviderList()(Code)
Get the current auxiliary provider list from this CompilerContext. The current AuxiliaryProviderList.

getCursorInfo
public Object getCursorInfo()(Code)
Get the cursor info stored in the context. the cursor info

getEntryIsolationLevel
public int getEntryIsolationLevel()(Code)
Get the entry isolation level from this CC. The entry isolation level.

getInUse
public boolean getInUse()(Code)
Return the in use state for the compiler context. boolean The in use state for the compiler context.

getJavaFactory
JavaFactory getJavaFactory()(Code)
Get the JavaFactory from this CompilerContext. The JavaFactory associated with this CompilerContext

getNextColumnNumber
int getNextColumnNumber()(Code)
Get the current next column number (for generated column names) from this CompilerContext. int The next column number for the current statement.

getNextEquivalenceClass
public int getNextEquivalenceClass()(Code)
Get the next equivalence class for equijoin clauses. The next equivalence class for equijoin clauses.

getNextResultSetNumber
int getNextResultSetNumber()(Code)
Get the current next ResultSet number from this CompilerContext. int The next ResultSet number for the current statement.

getNextSubqueryNumber
int getNextSubqueryNumber()(Code)
Get the current next subquery number from this CompilerContext. int The next subquery number for the current statement.

getNextTableNumber
int getNextTableNumber()(Code)
Get the current next table number from this CompilerContext. int The next table number for the current statement.

getNodeFactory
NodeFactory getNodeFactory()(Code)
Get the NodeFactory from this CompilerContext. The NodeFactory associated with this CompilerContext

getNumResultSets
int getNumResultSets()(Code)
Get the number of Results in the current statement from this CompilerContext. The number of ResultSets in the current statement.

getNumSubquerys
int getNumSubquerys()(Code)
Get the number of subquerys in the current statement from this CompilerContext. int The number of subquerys in the current statement.

getNumTables
int getNumTables()(Code)
Get the number of tables in the current statement from this CompilerContext. int The number of tables in the current statement.

getParameterList
public Vector getParameterList()(Code)
Get the parameter list. The parameter list.

getParameterTypes
public DataTypeDescriptor[] getParameterTypes()(Code)
Get the array of DataTypeDescriptor representing the types of the ? parameters. The parameter descriptors

getParser
Parser getParser()(Code)
Get the Parser from this CompilerContext. The parser associated with this CompilerContext

getReliability
public int getReliability()(Code)
Return the reliability requirements of this clause. See setReliability() for a definition of clause reliability. a bitmask of which types of query fragments are to be forbidden

getRequiredPermissionsList
public List getRequiredPermissionsList()(Code)
The list of required privileges.

getReturnParameterFlag
public boolean getReturnParameterFlag()(Code)
Is the callable statement uses ? for return parameter. true if ? = call else false

getSavedObjects
Object[] getSavedObjects()(Code)
Get the saved object pool (for putting into the prepared statement). This turns it into its storable form, an array of objects. the saved object pool.

getScanIsolationLevel
public int getScanIsolationLevel()(Code)
Get the isolation level for the scans in this query. The isolation level for the scans in this query.

getSortCostController
public SortCostController getSortCostController() throws StandardException(Code)
Get a SortCostController.
exception:
  StandardException - Thrown on error

getStoreCostController
public StoreCostController getStoreCostController(long conglomerateNumber) throws StandardException(Code)
Get a StoreCostController for the given conglomerate.
Parameters:
  conglomerateNumber - The conglomerate for which to get aStoreCostController. The appropriate StoreCostController.
exception:
  StandardException - Thrown on error

getTypeCompilerFactory
TypeCompilerFactory getTypeCompilerFactory()(Code)
Get the TypeCompilerFactory from this CompilerContext. The TypeCompilerFactory associated with this CompilerContext

getUniqueClassName
String getUniqueClassName()(Code)
Get a unique Class name from this CompilerContext. Ensures it is globally unique for this JVM. String A unique-enough class name.

getWarnings
public SQLWarning getWarnings()(Code)
Get the chain of compile time warnings.

isFirstOnStack
public boolean isFirstOnStack()(Code)
Is this the first CompilerContext on the stack?

popCurrentPrivType
public void popCurrentPrivType()(Code)

pushCurrentPrivType
public void pushCurrentPrivType(int privType)(Code)
Sets the current privilege type context and pushes the previous on onto a stack. Column and table nodes do not know how they are being used. Higher level nodes in the query tree do not know what is being referenced. Keeping the context allows the two to come together.
Parameters:
  privType - One of the privilege types in org.apache.derby.iapi.sql.conn.Authorizer.

resetContext
void resetContext()(Code)
Reset compiler context (as for instance, when we recycle a context for use by another compilation.

resetNextResultSetNumber
void resetNextResultSetNumber()(Code)
Reset the next ResultSet number from this CompilerContext.

setCompilationSchema
public SchemaDescriptor setCompilationSchema(SchemaDescriptor newDefault)(Code)
Set the compilation schema descriptor for this compilation context.
Parameters:
  newDefault - compilation schema the previous compilation schema descirptor

setCurrentAuxiliaryProviderList
void setCurrentAuxiliaryProviderList(ProviderList apl)(Code)
Set the current auxiliary provider list for this CompilerContext.
Parameters:
  apl - The new current AuxiliaryProviderList.

setCurrentDependent
void setCurrentDependent(Dependent d)(Code)
Set the current dependent from this CompilerContext. This should be called at the start of a compile to register who has the dependencies needed for the compilation.
Parameters:
  d - The Dependent currently being compiled.

setCursorInfo
public void setCursorInfo(Object cursorInfo)(Code)
Set params
Parameters:
  cursorInfo - the cursor info

setEntryIsolationLevel
public void setEntryIsolationLevel(int isolationLevel)(Code)
Set the isolation level on entry to this CC so that it can be restored on exit.
Parameters:
  isolationLevel - The isolation level on entry.

setInUse
public void setInUse(boolean inUse)(Code)
Set the in use state for the compiler context.
Parameters:
  inUse - The new inUse state for the compiler context.

setParameterList
public void setParameterList(Vector parameterList)(Code)
Set the parameter list.
Parameters:
  parameterList - The parameter list.

setReliability
public void setReliability(int reliability)(Code)
Sets which kind of query fragments are NOT allowed. Basically, these are fragments which return unstable results. CHECK CONSTRAINTS and CREATE PUBLICATION want to forbid certain kinds of fragments.
Parameters:
  reliability - bitmask of types of query fragments to be forbiddensee the reliability bitmasks above

setReturnParameterFlag
public void setReturnParameterFlag()(Code)
If callable statement uses ? = form

setSavedObjects
public void setSavedObjects(Object[] objs)(Code)
Set the saved object pool (for putting into the prepared statement).
Parameters:
  objs - The new saved objects

setScanIsolationLevel
public void setScanIsolationLevel(int isolationLevel)(Code)
Set the isolation level for the scans in this query.
Parameters:
  isolationLevel - The isolation level to use.

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