org.cdlib.xtf.saxonExt.exec

Class PipeImageInstruction

Object

Expression

SimpleExpression

RunInstruction

PipeImageInstruction

All Implemented Interfaces:

Serializable, SourceLocator, Container, EvaluableItem, SequenceIterable, InstructionInfoProvider

public class PipeImageInstruction
extends RunInstruction

Helper class that does most of the work for PipeImageElement.

See Also:

Serialized Form

Field Summary

Fields inherited from class RunInstruction

command, inputExpr, nArgs, timeout

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
PipeImageInstruction(Expression command, int timeout, List args)

Method Summary

Modifier and Type	Method and Description
Item	evaluateItem(XPathContext context)
String	getExpressionType()

Methods inherited from class RunInstruction

gatherArgs, getImplementationMethod, runAndGrab

Methods inherited from class SimpleExpression

computeCardinality, 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

Constructor Detail

PipeImageInstruction

public PipeImageInstruction(Expression command,
                            int timeout,
                            List args)

Method Detail

getExpressionType

public String getExpressionType()

Overrides:

getExpressionType in class RunInstruction

evaluateItem

public Item evaluateItem(XPathContext context)
                  throws XPathException

Specified by:

evaluateItem in interface EvaluableItem

Overrides:

evaluateItem in class RunInstruction

Throws:

XPathException