org.apache.derby.impl.sql.compile

Class NewInvocationNode

java.lang.Object

org.apache.derby.impl.sql.compile.QueryTreeNode

org.apache.derby.impl.sql.compile.JavaValueNode

org.apache.derby.impl.sql.compile.MethodCallNode

org.apache.derby.impl.sql.compile.NewInvocationNode

All Implemented Interfaces:

Node, Visitable

public class NewInvocationNode
extends MethodCallNode

A NewInvocationNode represents a new object() invocation.

Field Summary

Fields

Modifier and Type	Field and Description
private boolean	delimitedIdentifier
private boolean	isBuiltinVTI
private boolean	singleInstantiation

Fields inherited from class org.apache.derby.impl.sql.compile.MethodCallNode

actualMethodReturnType, internalCall, javaClassName, method, methodName, methodParameterTypes, methodParms, routineInfo, signature

Fields inherited from class org.apache.derby.impl.sql.compile.JavaValueNode

forCallStatement, jsqlType

Fields inherited from class org.apache.derby.impl.sql.compile.QueryTreeNode

AUTOINCREMENT_CREATE_MODIFY, AUTOINCREMENT_INC_INDEX, AUTOINCREMENT_IS_AUTOINCREMENT_INDEX, AUTOINCREMENT_START_INDEX

Constructor Summary

Constructors

Constructor and Description
NewInvocationNode()

Method Summary

Methods

Modifier and Type	Method and Description
protected boolean	assignableTo(java.lang.String toClassName) Is this class assignable to the specified class?
JavaValueNode	bindExpression(FromList fromList, SubqueryList subqueryList, java.util.List aggregateVector) Bind this expression.
boolean	categorize(JBitSet referencedTabs, boolean simplePredsOnly) Categorize this predicate.
protected java.lang.reflect.Member	findPublicMethod(java.lang.String methodName, boolean staticMethod) Is this class have a public method with the specified signiture This is useful for the VTI interface where we want to see if the class has the option static method for returning the ResultSetMetaData.
void	generateExpression(ExpressionClassBuilder acb, MethodBuilder mb) Do code generation for this method call
void	init(java.lang.Object javaClassName, java.lang.Object params, java.lang.Object delimitedIdentifier) Initializer for a NewInvocationNode.
void	init(java.lang.Object vtiTableFuncName, java.lang.Object tableDescriptor, java.lang.Object params, java.lang.Object delimitedIdentifier) Initialize a query tree node.
boolean	isBuiltinVTI() Report whether this node represents a builtin VTI.
(package private) void	setSingleInstantiation() Mark this node as only needing to to a single instantiation.

Methods inherited from class org.apache.derby.impl.sql.compile.MethodCallNode

acceptChildren, addParms, areParametersQueryInvariant, bindParameters, generateOneParameter, generateParameters, getCorrelationTables, getDataType, getFirstVarargIdx, getIsParam, getJavaClassName, getMethodName, getMethodParameterClasses, getMethodParms, getObjectSignature, getObjectTypeName, getOrderableVariantType, getParameterTypeName, getPrimitiveSignature, getResolvedMethod, getRoutineArgIdx, getRoutineArgIdx, getRoutineInfo, hasVarargs, init, isVararg, preprocess, printSubNodes, remapColumnReferencesToExpressions, resolveMethodCall, setNullParameterInfo, someParametersAreNull, stripOneArrayLevel, throwNoMethodFound, toString

Methods inherited from class org.apache.derby.impl.sql.compile.JavaValueNode

castToPrimitive, checkReliability, generate, generateReceiver, generateReceiver, getCollationType, getConstantValueAsObject, getJavaTypeName, getJSQLType, getPrimitiveTypeName, getReceiverExpression, isPrimitiveType, mapToTypeID, markForCallStatement, markReturnValueDiscarded, mustCastToPrimitive, returnValueDiscarded, returnValueToSQLDomain, setCollationType, setJavaTypeName, valueReturnedToSQLDomain

Methods inherited from class org.apache.derby.impl.sql.compile.QueryTreeNode

accept, bindOffsetFetch, bindRowMultiSet, bindUserCatalogType, bindUserType, checkReliability, checkReliability, convertDefaultNode, createTypeDependency, debugFlush, debugPrint, disablePrivilegeCollection, formatNodeString, foundString, generateAuthorizeCheck, getBeginOffset, getClassFactory, getCompilerContext, getContextManager, getCursorInfo, getDataDictionary, getDependencyManager, getEndOffset, getExecutionFactory, getGenericConstantActionFactory, getIntProperty, getLanguageConnectionContext, getNodeFactory, getNodeType, getNullNode, getParameterTypes, getSchemaDescriptor, getSchemaDescriptor, getStatementType, getTableDescriptor, getTypeCompiler, init, init, init, init, init, init, init, init, init, init, init, isAtomic, isInstanceOf, isPrivilegeCollectionRequired, isSessionSchema, isSessionSchema, makeConstantAction, makeTableName, makeTableName, nodeHeader, orReliability, parseStatement, printLabel, referencesSessionSchema, resolveTableToSynonym, setBeginOffset, setContextManager, setEndOffset, setNodeType, setRefActionInfo, stackPrint, treePrint, treePrint, verifyClassExist

Methods inherited from class java.lang.Object

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

Field Detail

singleInstantiation

private boolean singleInstantiation

delimitedIdentifier

private boolean delimitedIdentifier

isBuiltinVTI

private boolean isBuiltinVTI

Constructor Detail

NewInvocationNode

public NewInvocationNode()

Method Detail

init

public void init(java.lang.Object javaClassName,
        java.lang.Object params,
        java.lang.Object delimitedIdentifier)
          throws StandardException

Initializer for a NewInvocationNode. Parameters are:

• javaClassName The full package.class name of the class
• parameterList The parameter list for the constructor

Specified by:

init in interface Node

Overrides:

init in class QueryTreeNode

Throws:

StandardException - Thrown on error

init

public void init(java.lang.Object vtiTableFuncName,
        java.lang.Object tableDescriptor,
        java.lang.Object params,
        java.lang.Object delimitedIdentifier)
          throws StandardException

Description copied from class: QueryTreeNode

Initialize a query tree node.

Specified by:

init in interface Node

Overrides:

init in class QueryTreeNode

Throws:

StandardException - Thrown on error

isBuiltinVTI

public boolean isBuiltinVTI()

Report whether this node represents a builtin VTI.

setSingleInstantiation

void setSingleInstantiation()

Mark this node as only needing to to a single instantiation. (We can reuse the object after newing it.)

bindExpression

public JavaValueNode bindExpression(FromList fromList,
                           SubqueryList subqueryList,
                           java.util.List aggregateVector)
                             throws StandardException

Bind this expression. This means binding the sub-expressions, as well as figuring out what the return type is for this expression.

Specified by:

bindExpression in class JavaValueNode

Parameters:

fromList - The FROM list for the query this expression is in, for binding columns.

subqueryList - The subquery list being built as we find SubqueryNodes

aggregateVector - The aggregate vector being built as we find AggregateNodes

Returns:

Nothing

Throws:

StandardException - Thrown on error

See Also:

ValueNode.bindExpression(org.apache.derby.impl.sql.compile.FromList, org.apache.derby.impl.sql.compile.SubqueryList, java.util.List)

categorize

public boolean categorize(JBitSet referencedTabs,
                 boolean simplePredsOnly)
                   throws StandardException

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.

Overrides:

categorize in class MethodCallNode

Parameters:

referencedTabs - JBitSet with bit map of referenced FromTables

simplePredsOnly - Whether or not to consider method calls, field references and conditional nodes when building bit map

Returns:

boolean Whether or not source.expression is a ColumnReference or a VirtualColumnNode.

Throws:

StandardException - Thrown on error

See Also:

ValueNode.categorize(org.apache.derby.iapi.util.JBitSet, boolean)

assignableTo

protected boolean assignableTo(java.lang.String toClassName)
                        throws StandardException

Is this class assignable to the specified class? This is useful for the VTI interface where we want to see if the class implements java.sql.ResultSet.

Parameters:

toClassName - The java class name we want to assign to

Returns:

boolean Whether or not this class is assignable to the specified class

Throws:

StandardException - Thrown on error

findPublicMethod

protected java.lang.reflect.Member findPublicMethod(java.lang.String methodName,
                                        boolean staticMethod)
                                             throws StandardException

Is this class have a public method with the specified signiture This is useful for the VTI interface where we want to see if the class has the option static method for returning the ResultSetMetaData.

Parameters:

methodName - The method name we are looking for

staticMethod - Whether or not the method we are looking for is static

Returns:

Member The Member representing the method (or null if the method doesn't exist).

Throws:

StandardException - Thrown on error

generateExpression

public void generateExpression(ExpressionClassBuilder acb,
                      MethodBuilder mb)
                        throws StandardException

Do code generation for this method call

Specified by:

generateExpression in class JavaValueNode

Parameters:

acb - The ExpressionClassBuilder for the class we're generating

mb - The method the expression will go into

Throws:

StandardException - Thrown on error