com.saxonica.functions.sql

Class SQLPreparedStatementFn

java.lang.Object

net.sf.saxon.functions.AbstractFunction

net.sf.saxon.functions.SystemFunction

com.saxonica.functions.sql.SQLPreparedStatementFn

All Implemented Interfaces:

java.lang.Iterable<Function>, Callable, Function, GroundedValue<Function>, Item<Function>, Sequence<Function>

public class SQLPreparedStatementFn
extends SystemFunction

This class implements the sql:prepared-statement() extension function. Arguments:

1. The connection
2. A SQL statement, typically containing "?" placeholders

The result is a function, with arity equal to the number of placeholders. When calling this function, the supplied arguments substitute for the placeholders in the statement, and the result is an empty sequence.

Constructor Summary

Constructors

Constructor and Description
SQLPreparedStatementFn()

Method Summary

Modifier and Type	Method and Description
Function	call(XPathContext context, Sequence[] arguments) Invoke the function

Methods inherited from class net.sf.saxon.functions.SystemFunction

dependsOnContextItem, dynamicCall, equals, export, exportAdditionalArguments, exportAttributes, fixArguments, getArity, getCardinality, getCompilerName, getContextNode, getDescription, getDetails, getErrorCodeForTypeErrors, getFunctionItemType, getFunctionName, getIntegerBounds, getNetCost, getOperandRoles, getRequiredType, getResultItemType, getResultItemType, getRetainedStaticContext, getSpecialProperties, getStaticBaseUriString, getStreamerName, importAttributes, isTrustedResultType, makeCall, makeFunction, makeFunctionCall, makeOptimizedFunctionCall, resultIfEmpty, setArity, setDetails, setRetainedStaticContext, supplyTypeInformation, toShortString, toString, typeCheckCaller

Methods inherited from class net.sf.saxon.functions.AbstractFunction

atomize, deepEquals, effectiveBooleanValue, getAnnotations, getStringValue, getStringValueCS, isArray, isMap, makeNewContext, simplify, typeCheck

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sf.saxon.om.Function

argumentArray, getGenre

Methods inherited from interface net.sf.saxon.om.Item

getLength, head, isStreamed, itemAt, iterate, iterator, reduce, subsequence, toGroundedValue

Methods inherited from interface net.sf.saxon.om.GroundedValue

asIterable, materialize

Methods inherited from interface net.sf.saxon.om.Sequence

makeRepeatable

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

SQLPreparedStatementFn

public SQLPreparedStatementFn()

Method Detail

call

public Function call(XPathContext context,
                     Sequence[] arguments)
              throws XPathException

Description copied from interface: Function

Invoke the function

Parameters:

context - the XPath dynamic evaluation context

arguments - the actual arguments to be supplied

Returns:

the result of invoking the function

Throws:

XPathException - if a dynamic error occurs within the function