org.cdlib.xtf.saxonExt.sql
Class SQLConnect.ConnectInstruction

Object
  Expression
      SimpleExpression
          SQLConnect.ConnectInstruction

All Implemented Interfaces:

Serializable, SourceLocator, Container, EvaluableItem, SequenceIterable, InstructionInfoProvider

Enclosing class:

SQLConnect

private static class SQLConnect.ConnectInstruction
extends SimpleExpression

Field Summary

static int	DATABASE
static int	DRIVER
static int	FIRST_PROPERTY
static int	PASSWORD
static int	USER

Fields inherited from class SimpleExpression

arguments, NO_ARGUMENTS

Fields inherited from class Expression

EVALUATE_METHOD, ITERATE_METHOD, locationId, PROCESS_METHOD, staticProperties

Constructor Summary

SQLConnect.ConnectInstruction(Expression database, Expression driver, Expression user, Expression password, List propertyInstructions)

Method Summary

int	computeCardinality()
Item	evaluateItem(XPathContext context)
String	getExpressionType()
int	getImplementationMethod() A subclass must provide one of the methods evaluateItem(), iterate(), or process().

Methods inherited from class SimpleExpression

computeDependencies, display, getItemType, iterate, iterateSubExpressions, optimize, process, promote, replaceSubExpression, setArguments, simplify, typeCheck

Methods inherited from class Expression

adoptChildExpression, checkPermittedContents, computeSpecialProperties, computeStaticProperties, doPromotion, dynamicError, effectiveBooleanValue, evaluateAsString, getCardinality, getColumnNumber, getConstructType, getContainingProcedure, getDependencies, getExecutable, getHostLanguage, getInstructionInfo, getIntrinsicDependencies, getLineNumber, getLocationId, getLocationProvider, getParentExpression, getPublicId, getSlotsUsed, getSpecialProperties, getSystemId, hasBadParentPointer, markTailFunctionCalls, resetStaticProperties, setLocationId, setParentExpression, setParentExpression, suppressValidation, typeError

Methods inherited from class Object

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

Field Detail

DATABASE

public static final int DATABASE

See Also:

Constant Field Values

DRIVER

public static final int DRIVER

See Also:

Constant Field Values

USER

public static final int USER

See Also:

Constant Field Values

PASSWORD

public static final int PASSWORD

See Also:

Constant Field Values

FIRST_PROPERTY

public static final int FIRST_PROPERTY

See Also:

Constant Field Values

Constructor Detail

SQLConnect.ConnectInstruction

public SQLConnect.ConnectInstruction(Expression database,
                                     Expression driver,
                                     Expression user,
                                     Expression password,
                                     List propertyInstructions)

Method Detail

getImplementationMethod

public int getImplementationMethod()

A subclass must provide one of the methods evaluateItem(), iterate(), or process(). This method indicates which of the three is provided.

Overrides:

getImplementationMethod in class Expression

computeCardinality

public int computeCardinality()

Overrides:

computeCardinality in class SimpleExpression

getExpressionType

public String getExpressionType()

Overrides:

getExpressionType in class SimpleExpression

evaluateItem

public Item evaluateItem(XPathContext context)
                  throws XPathException

Specified by:

evaluateItem in interface EvaluableItem

Overrides:

evaluateItem in class SimpleExpression

Throws:

XPathException