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:

Visitable

public class NewInvocationNode

extends MethodCallNode

A NewInvocationNode represents a new object() invocation.

Author:

Jerry Brenner

Field Summary

private boolean	delimitedIdentifier
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_INC_INDEX, AUTOINCREMENT_IS_AUTOINCREMENT_INDEX, AUTOINCREMENT_START_INDEX, beginOffset, endOffset

Constructor Summary

NewInvocationNode()

Method Summary

protected boolean	assignableTo(java.lang.String toClassName) Is this class assignable to the specified class?
JavaValueNode	bindExpression(FromList fromList, SubqueryList subqueryList, java.util.Vector 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
(package private) void	getCorrelationTables(JBitSet correlationMap) Build a JBitSet of all of the tables that we are correlated with.
java.lang.Class[]	getMethodParameterClasses() Get the resolved Classes of our parameters
void	init(java.lang.Object javaClassName, java.lang.Object params, java.lang.Object delimitedIdentifier) Initializer for a NewInvocationNode
(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

accept, addParms, addParms, areParametersQueryInvariant, bindParameters, generateOneParameter, generateParameters, getIsParam, getJavaClassName, getMethodName, getMethodParms, getObjectSignature, getOrderableVariantType, getParameterTypeName, getPrimitiveSignature, getSignature, init, preprocess, printSubNodes, remapColumnReferencesToExpressions, resolveMethodCall, setClause, setNullParameterInfo, someParametersAreNull, throwNoMethodFound, toString

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

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

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

bind, convertDefaultNode, debugFlush, debugPrint, executeSchemaName, executeStatementName, formatNodeString, foundString, generate, generateAuthorizeCheck, getBeginOffset, getClassFactory, getCompilerContext, getContextManager, getCursorInfo, getDataDictionary, getDependencyManager, getEndOffset, getExecutionFactory, getGenericConstantActionFactory, getIntProperty, getLanguageConnectionContext, getNodeFactory, getNodeType, getNullNode, getParameterTypes, getRowEstimate, getSchemaDescriptor, getSchemaDescriptor, getSPSName, getStatementType, getTableDescriptor, getTypeCompiler, init, init, init, init, init, init, init, init, init, init, init, init, isAtomic, isInstanceOf, isSessionSchema, isSessionSchema, makeConstantAction, makeResultDescription, makeTableName, needsSavepoint, nodeHeader, optimize, parseQueryText, printLabel, referencesSessionSchema, resolveTableToSynonym, setBeginOffset, setContextManager, setEndOffset, setNodeType, setRefActionInfo, 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

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

Overrides:

init in class QueryTreeNode

Parameters:

javaClassName - The full package.class name of the class

Throws:

StandardException - Thrown on error

setSingleInstantiation

void setSingleInstantiation()

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

Returns:

Nothing.

getMethodParameterClasses

public java.lang.Class[] getMethodParameterClasses()

Get the resolved Classes of our parameters

Returns:

the Classes of our parameters

bindExpression

public JavaValueNode bindExpression(FromList fromList,
                                    SubqueryList subqueryList,
                                    java.util.Vector 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.Vector)

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

getCorrelationTables

void getCorrelationTables(JBitSet correlationMap)
                    throws StandardException

Build a JBitSet of all of the tables that we are correlated with.

Parameters:

correlationMap - The JBitSet of the tables that we are correlated with.

Returns:

Nothing.

Throws:

StandardException

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

Returns:

The compiled Expression

Throws:

StandardException - Thrown on error