org.cdlib.xtf.saxonExt.sql

Class SQLQuery.QueryInstruction

Object

Expression

SimpleExpression

SQLQuery.QueryInstruction

All Implemented Interfaces:

Serializable, SourceLocator, Container, EvaluableItem, SequenceIterable, InstructionInfoProvider

Enclosing class:

SQLQuery

private static class SQLQuery.QueryInstruction
extends SimpleExpression

Field Summary

Fields

Modifier and Type	Field and Description
(package private) String	colTag
static int	COLUMN
static int	CONNECTION
(package private) int	options
(package private) String	rowTag
static int	TABLE
static int	WHERE

Fields inherited from class SimpleExpression

arguments, NO_ARGUMENTS

Fields inherited from class Expression

EVALUATE_METHOD, ITERATE_METHOD, locationId, PROCESS_METHOD, staticProperties

Constructor Summary

Constructors

Constructor and Description
QueryInstruction(Expression connection, Expression column, Expression table, Expression where, String rowTag, String colTag, boolean disable)

Method Summary

Modifier and Type	Method and Description
String	getExpressionType()
int	getImplementationMethod() A subclass must provide one of the methods evaluateItem(), iterate(), or process().
void	process(XPathContext context)

Methods inherited from class SimpleExpression

computeCardinality, computeDependencies, display, evaluateItem, getItemType, iterate, iterateSubExpressions, optimize, 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

CONNECTION

public static final int CONNECTION

See Also:

Constant Field Values

COLUMN

public static final int COLUMN

See Also:

Constant Field Values

TABLE

public static final int TABLE

See Also:

Constant Field Values

WHERE

public static final int WHERE

See Also:

Constant Field Values

rowTag

String rowTag

colTag

String colTag

options

int options

Constructor Detail

QueryInstruction

public QueryInstruction(Expression connection,
                        Expression column,
                        Expression table,
                        Expression where,
                        String rowTag,
                        String colTag,
                        boolean disable)

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

getExpressionType

public String getExpressionType()

Overrides:

getExpressionType in class SimpleExpression

process

public void process(XPathContext context)
             throws XPathException

Overrides:

process in class SimpleExpression

Throws:

XPathException