| java.lang.Object
 org.apache.derby.impl.sql.compile.QueryTreeNode
org.apache.derby.impl.sql.compile.JavaValueNode
org.apache.derby.impl.sql.compile.SQLToJavaValueNode
| SQLToJavaValueNode | | public class SQLToJavaValueNode extends JavaValueNode (Code) | | This node type converts a value in the SQL domain to a value in the Java
domain.
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| Method Summary | |
| public Visitable | accept(Visitor v)
Accept a visitor, and call v.visit()
on child nodes as necessary. | | public JavaValueNode | bindExpression(FromList fromList, SubqueryList subqueryList, Vector aggregateVector)
Bind this expression. | | public boolean | categorize(JBitSet referencedTabs, boolean simplePredsOnly)
Categorize this predicate. | | public void | generateExpression(ExpressionClassBuilder acb, MethodBuilder mb)
Generate code to get the Java value out of a SQL value.
Every SQL type has a corresponding Java type. | | public void | generateJavaValue(ExpressionClassBuilder acb, MethodBuilder mbex)
Generate code to cast the SQLValue to a Java value. | | public void | generateSQLValue(ExpressionClassBuilder acb, MethodBuilder mb)
Generate the SQLvalue that this node wraps. | | Object | getConstantValueAsObject()
| | public JSQLType | getJSQLType()
Get the JSQLType that corresponds to this node. | | public String | getJavaTypeName()
Returns the name of the java class type that this node coerces to. | | protected int | getOrderableVariantType()
Return the variant type for the underlying expression. | | public String | getPrimitiveTypeName()
Returns the name of the java primitive type that this node coerces to. | | public String | getSQLValueInterfaceName()
Get the type name of the SQLValue we generate. | | ValueNode | getSQLValueNode()
| | public void | init(Object value)
| | public void | preprocess(int numTables, FromList outerFromList, SubqueryList outerSubqueryList, PredicateList outerPredicateList)
Preprocess an expression tree. | | public void | printSubNodes(int depth)
Prints the sub-nodes of this object. | | public JavaValueNode | remapColumnReferencesToExpressions()
Remap all ColumnReferences in this tree to be clones of the
underlying expression. | | public void | setClause(int clause)
Set the clause that this node appears in. |
| bindExpression | | public JavaValueNode bindExpression(FromList fromList, SubqueryList subqueryList, Vector aggregateVector) throws StandardException(Code) | | Bind this expression. This means binding the sub-expressions,
as well as figuring out what the return type is for this expression.
Parameters:
fromList - The FROM list for the query thisexpression is in, for binding columns.
Parameters:
subqueryList - The subquery list being built as we findSubqueryNodes
Parameters:
aggregateVector - The aggregate vector being built as we find AggregateNodes this
exception:
StandardException - Thrown on error |
| categorize | | public boolean categorize(JBitSet referencedTabs, boolean simplePredsOnly) throws StandardException(Code) | | Categorize this predicate. Initially, this means
building a bit map of the referenced tables for each predicate.
If the source of this ColumnReference (at the next underlying level)
is not a ColumnReference or a VirtualColumnNode then this predicate
will not be pushed down.
For example, in:
select * from (select 1 from s) a (x) where x = 1
we will not push down x = 1.
NOTE: It would be easy to handle the case of a constant, but if the
inner SELECT returns an arbitrary expression, then we would have to copy
that tree into the pushed predicate, and that tree could contain
subqueries and method calls.
RESOLVE - revisit this issue once we have views.
Parameters:
referencedTabs - JBitSet with bit map of referenced FromTables
Parameters:
simplePredsOnly - Whether or not to consider methodcalls, field references and conditional nodeswhen building bit map boolean Whether or not source.expression is a ColumnReferenceor a VirtualColumnNode.
exception:
StandardException - Thrown on error |
| generateExpression | | public void generateExpression(ExpressionClassBuilder acb, MethodBuilder mb) throws StandardException(Code) | | Generate code to get the Java value out of a SQL value.
Every SQL type has a corresponding Java type. The getObject() method
on the SQL type gets the right Java type.
The generated code will be:
() ((DataValueDescriptor)
.getObject())
where comes from the getCorrespondingJavaTypeName()
method of the value's TypeId.
Parameters:
acb - The ExpressionClassBuilder for the class being built
Parameters:
mb - The method the expression will go into
exception:
StandardException - Thrown on error |
| getJSQLType | | public JSQLType getJSQLType() throws StandardException(Code) | | Get the JSQLType that corresponds to this node. Could be a SQLTYPE,
a Java primitive, or a Java class.
Overrides method in JavaValueNode.
the corresponding JSQLType |
| getJavaTypeName | | public String getJavaTypeName() throws StandardException(Code) | | Returns the name of the java class type that this node coerces to.
name of java class type |
| getOrderableVariantType | | protected int getOrderableVariantType() throws StandardException(Code) | | Return the variant type for the underlying expression.
The variant type can be:
VARIANT - variant within a scan
(method calls and non-static field access)
SCAN_INVARIANT - invariant within a scan
(column references from outer tables)
QUERY_INVARIANT - invariant within the life of a query
(constant expressions)
The variant type for the underlying expression.
exception:
StandardException - thrown on error |
| getPrimitiveTypeName | | public String getPrimitiveTypeName() throws StandardException(Code) | | Returns the name of the java primitive type that this node coerces to.
name of java primitive type
exception:
StandardException - Thrown on error |
| getSQLValueInterfaceName | | public String getSQLValueInterfaceName() throws StandardException(Code) | | Get the type name of the SQLValue we generate.
name of interface corresponding to SQLValue
exception:
StandardException - Thrown on error |
| getSQLValueNode | | ValueNode getSQLValueNode()(Code) | | Get the SQL ValueNode that is being converted to a JavaValueNode
The underlying SQL ValueNode |
| init | | public void init(Object value)(Code) | | Constructor for a SQLToJavaValueNode
Parameters:
value - A ValueNode representing a SQL value to convert tothe Java domain. |
| preprocess | | public void preprocess(int numTables, FromList outerFromList, SubqueryList outerSubqueryList, PredicateList outerPredicateList) throws StandardException(Code) | | Preprocess an expression tree. We do a number of transformations
here (including subqueries, IN lists, LIKE and BETWEEN) plus
subquery flattening.
NOTE: This is done before the outer ResultSetNode is preprocessed.
Parameters:
numTables - Number of tables in the DML Statement
Parameters:
outerFromList - FromList from outer query block
Parameters:
outerSubqueryList - SubqueryList from outer query block
Parameters:
outerPredicateList - PredicateList from outer query block
exception:
StandardException - Thrown on error |
| printSubNodes | | public void printSubNodes(int depth)(Code) | | Prints the sub-nodes of this object. See QueryTreeNode.java for
how tree printing is supposed to work.
Parameters:
depth - The depth of this node in the tree |
| remapColumnReferencesToExpressions | | public JavaValueNode remapColumnReferencesToExpressions() throws StandardException(Code) | | Remap all ColumnReferences in this tree to be clones of the
underlying expression.
JavaValueNode The remapped expression tree.
exception:
StandardException - Thrown on error |
| setClause | | public void setClause(int clause)(Code) | | Set the clause that this node appears in.
Parameters:
clause - The clause that this node appears in. |
| Methods inherited from org.apache.derby.impl.sql.compile.JavaValueNode | abstract JavaValueNode bindExpression(FromList fromList, SubqueryList subqueryList, Vector aggregateVector) throws StandardException(Code)(Java Doc)
public void castToPrimitive(boolean booleanValue)(Code)(Java Doc)
abstract public boolean categorize(JBitSet referencedTabs, boolean simplePredsOnly) throws StandardException(Code)(Java Doc)
public void checkReliability(ValueNode sqlNode) throws StandardException(Code)(Java Doc)
final protected void generate(ActivationClassBuilder acb, MethodBuilder mb) throws StandardException(Code)(Java Doc)
abstract protected void generateExpression(ExpressionClassBuilder acb, MethodBuilder mb) throws StandardException(Code)(Java Doc)
protected boolean generateReceiver(ExpressionClassBuilder acb, MethodBuilder mb) throws StandardException(Code)(Java Doc)
final protected boolean generateReceiver(ExpressionClassBuilder acb, MethodBuilder mb, JavaValueNode receiver) throws StandardException(Code)(Java Doc)
Object getConstantValueAsObject() throws StandardException(Code)(Java Doc)
public JSQLType getJSQLType() throws StandardException(Code)(Java Doc)
public String getJavaTypeName() throws StandardException(Code)(Java Doc)
protected int getOrderableVariantType() throws StandardException(Code)(Java Doc)
public String getPrimitiveTypeName() throws StandardException(Code)(Java Doc)
final protected void getReceiverExpression(ExpressionClassBuilder acb, MethodBuilder mb, JavaValueNode receiver) throws StandardException(Code)(Java Doc)
public boolean isPrimitiveType() throws StandardException(Code)(Java Doc)
public TypeId mapToTypeID(JSQLType jsqlType)(Code)(Java Doc)
public void markForCallStatement()(Code)(Java Doc)
protected void markReturnValueDiscarded()(Code)(Java Doc)
public boolean mustCastToPrimitive()(Code)(Java Doc)
abstract public void preprocess(int numTables, FromList outerFromList, SubqueryList outerSubqueryList, PredicateList outerPredicateList) throws StandardException(Code)(Java Doc)
abstract public JavaValueNode remapColumnReferencesToExpressions() throws StandardException(Code)(Java Doc)
protected boolean returnValueDiscarded()(Code)(Java Doc)
protected void returnValueToSQLDomain()(Code)(Java Doc)
public void setClause(int clause)(Code)(Java Doc)
public void setJavaTypeName(String javaTypeName)(Code)(Java Doc)
protected boolean valueReturnedToSQLDomain()(Code)(Java Doc)
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| Methods inherited from org.apache.derby.impl.sql.compile.QueryTreeNode | public Visitable accept(Visitor v) throws StandardException(Code)(Java Doc)
public QueryTreeNode bind() throws StandardException(Code)(Java Doc)
public DataValueDescriptor convertDefaultNode(DataTypeDescriptor typeDescriptor) throws StandardException(Code)(Java Doc)
protected static void debugFlush()(Code)(Java Doc)
public static void debugPrint(String outputString)(Code)(Java Doc)
public void disablePrivilegeCollection()(Code)(Java Doc)
public String executeSchemaName()(Code)(Java Doc)
public String executeStatementName()(Code)(Java Doc)
public static String formatNodeString(String nodeString, int depth)(Code)(Java Doc)
public boolean foundString(String[] list, String search)(Code)(Java Doc)
public GeneratedClass generate(ByteArray ignored) throws StandardException(Code)(Java Doc)
protected void generate(ActivationClassBuilder acb, MethodBuilder mb) throws StandardException(Code)(Java Doc)
void generateAuthorizeCheck(ActivationClassBuilder acb, MethodBuilder mb, int sqlOperation)(Code)(Java Doc)
public int getBeginOffset()(Code)(Java Doc)
final protected ClassFactory getClassFactory()(Code)(Java Doc)
final protected CompilerContext getCompilerContext()(Code)(Java Doc)
final public ContextManager getContextManager()(Code)(Java Doc)
public Object getCursorInfo() throws StandardException(Code)(Java Doc)
final public DataDictionary getDataDictionary()(Code)(Java Doc)
final public DependencyManager getDependencyManager()(Code)(Java Doc)
public int getEndOffset()(Code)(Java Doc)
final public ExecutionFactory getExecutionFactory()(Code)(Java Doc)
final public GenericConstantActionFactory getGenericConstantActionFactory()(Code)(Java Doc)
protected int getIntProperty(String value, String key) throws StandardException(Code)(Java Doc)
final protected LanguageConnectionContext getLanguageConnectionContext()(Code)(Java Doc)
final public NodeFactory getNodeFactory()(Code)(Java Doc)
protected int getNodeType()(Code)(Java Doc)
public ConstantNode getNullNode(TypeId typeId, ContextManager cm) throws StandardException(Code)(Java Doc)
public DataTypeDescriptor[] getParameterTypes() throws StandardException(Code)(Java Doc)
public long getRowEstimate()(Code)(Java Doc)
public String getSPSName()(Code)(Java Doc)
final SchemaDescriptor getSchemaDescriptor(String schemaName) throws StandardException(Code)(Java Doc)
final SchemaDescriptor getSchemaDescriptor(String schemaName, boolean raiseError) throws StandardException(Code)(Java Doc)
protected int getStatementType()(Code)(Java Doc)
final protected TableDescriptor getTableDescriptor(String tableName, SchemaDescriptor schema) throws StandardException(Code)(Java Doc)
final protected TypeCompiler getTypeCompiler(TypeId typeId)(Code)(Java Doc)
public void init(Object arg1) throws StandardException(Code)(Java Doc)
public void init(Object arg1, Object arg2) throws StandardException(Code)(Java Doc)
public void init(Object arg1, Object arg2, Object arg3) throws StandardException(Code)(Java Doc)
public void init(Object arg1, Object arg2, Object arg3, Object arg4) throws StandardException(Code)(Java Doc)
public void init(Object arg1, Object arg2, Object arg3, Object arg4, Object arg5) throws StandardException(Code)(Java Doc)
public void init(Object arg1, Object arg2, Object arg3, Object arg4, Object arg5, Object arg6) throws StandardException(Code)(Java Doc)
public void init(Object arg1, Object arg2, Object arg3, Object arg4, Object arg5, Object arg6, Object arg7) throws StandardException(Code)(Java Doc)
public void init(Object arg1, Object arg2, Object arg3, Object arg4, Object arg5, Object arg6, Object arg7, Object arg8) throws StandardException(Code)(Java Doc)
public void init(Object arg1, Object arg2, Object arg3, Object arg4, Object arg5, Object arg6, Object arg7, Object arg8, Object arg9) throws StandardException(Code)(Java Doc)
public void init(Object arg1, Object arg2, Object arg3, Object arg4, Object arg5, Object arg6, Object arg7, Object arg8, Object arg9, Object arg10) throws StandardException(Code)(Java Doc)
public void init(Object arg1, Object arg2, Object arg3, Object arg4, Object arg5, Object arg6, Object arg7, Object arg8, Object arg9, Object arg10, Object arg11) throws StandardException(Code)(Java Doc)
public void init(Object arg1, Object arg2, Object arg3, Object arg4, Object arg5, Object arg6, Object arg7, Object arg8, Object arg9, Object arg10, Object arg11, Object arg12) throws StandardException(Code)(Java Doc)
public void init(Object arg1, Object arg2, Object arg3, Object arg4, Object arg5, Object arg6, Object arg7, Object arg8, Object arg9, Object arg10, Object arg11, Object arg12, Object arg13) throws StandardException(Code)(Java Doc)
public void init(Object arg1, Object arg2, Object arg3, Object arg4, Object arg5, Object arg6, Object arg7, Object arg8, Object arg9, Object arg10, Object arg11, Object arg12, Object arg13, Object arg14) throws StandardException(Code)(Java Doc)
public boolean isAtomic() throws StandardException(Code)(Java Doc)
protected boolean isInstanceOf(int nodeType)(Code)(Java Doc)
public boolean isPrivilegeCollectionRequired()(Code)(Java Doc)
final boolean isSessionSchema(SchemaDescriptor sd)(Code)(Java Doc)
final boolean isSessionSchema(String schemaName)(Code)(Java Doc)
public ConstantAction makeConstantAction() throws StandardException(Code)(Java Doc)
public ResultDescription makeResultDescription() throws StandardException(Code)(Java Doc)
public TableName makeTableName(String schemaName, String flatName) throws StandardException(Code)(Java Doc)
public boolean needsSavepoint()(Code)(Java Doc)
protected String nodeHeader()(Code)(Java Doc)
public QueryTreeNode optimize() throws StandardException(Code)(Java Doc)
public static QueryTreeNode parseQueryText(CompilerContext compilerContext, String queryText, Object[] paramDefaults, LanguageConnectionContext lcc) throws StandardException(Code)(Java Doc)
public void printLabel(int depth, String label)(Code)(Java Doc)
public void printSubNodes(int depth)(Code)(Java Doc)
public boolean referencesSessionSchema() throws StandardException(Code)(Java Doc)
public TableName resolveTableToSynonym(TableName tabName) throws StandardException(Code)(Java Doc)
public void setBeginOffset(int beginOffset)(Code)(Java Doc)
public void setContextManager(ContextManager cm)(Code)(Java Doc)
public void setEndOffset(int endOffset)(Code)(Java Doc)
public void setNodeType(int nodeType)(Code)(Java Doc)
public void setRefActionInfo(long fkIndexConglomId, int[] fkColArray, String parentResultSetId, boolean dependentScan)(Code)(Java Doc)
public String toString()(Code)(Java Doc)
public void treePrint()(Code)(Java Doc)
public void treePrint(int depth)(Code)(Java Doc)
String verifyClassExist(String javaClassName, boolean convertCase) throws StandardException(Code)(Java Doc)
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