org.cdlib.xtf.saxonExt.exec
Class PipeImageElement

Object
  NodeImpl
      ElementImpl
          ElementWithAttributes
              StyleElement
                  ExtensionInstruction
                      RunElement
                          PipeImageElement

All Implemented Interfaces:

Source, SourceLocator, LocationProvider, SaxonLocator, Container, FingerprintedNode, Item, NodeInfo, ValueRepresentation, InstructionInfo, Locator

public class PipeImageElement
extends RunElement

Implements almost the same thing as Exec.run saxon extension, except that instead of returning stdout as a string or XML, it is interpreted as an image and sent directly to the servlet output stream (with a proper MIME type). Images of type PNG and JPEG are acceptable; others will cause an exception to be thrown.

Field Summary

protected int

sequence

Fields inherited from class RunElement

command, timeoutMsec

Fields inherited from class StyleElement

defaultCollationName, defaultXPathNamespace, extensionNamespaces, REPORT_ALWAYS, REPORT_IF_INSTANTIATED, REPORT_UNLESS_FALLBACK_AVAILABLE, REPORT_UNLESS_FORWARDS_COMPATIBLE, reportingCircumstances, staticContext, validationError, version

Fields inherited from class ElementWithAttributes

attributeList, namespaceList

Fields inherited from class ElementImpl

nameCode, root

Fields inherited from class NodeImpl

index, NODE_LETTER, parent

Fields inherited from interface NodeInfo

ALL_NAMESPACES, EMPTY_NAMESPACE_LIST, IS_DTD_TYPE, IS_NILLED, LOCAL_NAMESPACES, NO_NAMESPACES

Fields inherited from interface ValueRepresentation

EMPTY_VALUE_ARRAY

Constructor Summary

PipeImageElement()

Method Summary

void	addChild(NodeImpl arg0, int arg1)
void	compact(int arg0)
Expression	compile(Executable exec)
AxisIterator	enumerateChildren(NodeTest arg0)
NodeInfo	getFirstChild()
NodeInfo	getLastChild()
protected NodeImpl	getNthChild(int arg0)
protected long	getSequenceNumber()
String	getStringValue()
CharSequence	getStringValueCS()
boolean	hasChildNodes()
void	useChildrenArray(NodeImpl[] arg0)

Methods inherited from class RunElement

getArgInstructions, prepareAttributes

Methods inherited from class ExtensionInstruction

isInstruction, mayContainFallback, validate

Methods inherited from class StyleElement

allocateLocationId, allocatePatternSlots, allocateSlots, allocateSlots, backwardsCompatibleModeIsEnabled, bindVariable, checkEmpty, checkSortComesFirst, checkTopLevel, checkUnknownAttribute, checkWithinTemplate, compileError, compileError, compileError, compileSequenceConstructor, compileWarning, definesExcludedNamespace, definesExtensionElement, fallbackProcessing, fixupReferences, forwardsCompatibleModeIsEnabled, getAttributeSets, getAttributeValue, getCommonChildItemType, getConstructType, getContainingSlotManager, getContainingStylesheet, getDefaultCollationName, getDefaultXPathNamespace, getExecutable, getHostLanguage, getLastChildInstruction, getLineNumber, getLineNumber, getLocationProvider, getNamespaceResolver, getObjectFingerprint, getObjectNameCode, getPrecedence, getPreparedStylesheet, getPrincipalStylesheet, getProperties, getProperty, getReturnedItemType, getSchemaType, getStaticContext, getStylesheetFunction, getSystemId, getTargetNamePool, getTypeAnnotation, getVersion, getWithParamInstructions, isExcludedNamespace, isExplaining, isExtensionNamespace, isPermittedChild, issueWarning, issueWarning, isTopLevel, makeAttributeValueTemplate, makeExpression, makeNameCode, makeNamespaceContext, makePattern, makeSequenceType, makeSortKeys, makeTraceInstruction, markTailCalls, mayContainSequenceConstructor, postValidate, processAllAttributes, processAttributes, processDefaultCollationAttribute, processDefaultXPathNamespaceAttribute, processExcludedNamespaces, processExtensionElementAttribute, processVersionAttribute, replaceSubExpression, reportAbsence, setLineNumber, setObjectNameCode, setValidationError, substituteFor, typeCheck, typeCheck, undeclaredNamespaceError, validateChildren, validateSubtree

Methods inherited from class ElementWithAttributes

copy, getAttributeList, getAttributeValue, getDeclaredNamespaces, getInScopeNamespaceCodes, getPrefixForURI, getURICodeForPrefix, getURIForPrefix, initialise, iteratePrefixes, sendNamespaceDeclarations, setNamespaceDeclarations

Methods inherited from class ElementImpl

generateId, getBaseURI, getDocumentRoot, getNameCode, getNodeKind, getRoot, getSystemId, setNameCode, setSystemId

Methods inherited from class NodeImpl

atomize, compareOrder, equals, getColumnNumber, getConfiguration, getDisplayName, getDocumentNumber, getFingerprint, getLocalPart, getNamePool, getNextInDocument, getNextSibling, getParent, getPrefix, getPreviousInDocument, getPreviousSibling, getPublicId, getTypeAnnotation, getTypedValue, getURI, hashCode, isSameNodeInfo, iterateAxis, iterateAxis

Methods inherited from class Object

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

Methods inherited from interface InstructionInfo

getSystemId

Methods inherited from interface Locator

getColumnNumber, getPublicId

Methods inherited from interface SourceLocator

getColumnNumber, getPublicId

Field Detail

sequence

protected int sequence

Constructor Detail

PipeImageElement

public PipeImageElement()

Method Detail

compile

public Expression compile(Executable exec)
                   throws XPathException

Overrides:

compile in class RunElement

Throws:

XPathException

getSequenceNumber

protected final long getSequenceNumber()

Overrides:

getSequenceNumber in class NodeImpl

hasChildNodes

public final boolean hasChildNodes()

Specified by:

hasChildNodes in interface NodeInfo

Overrides:

hasChildNodes in class NodeImpl

enumerateChildren

public final AxisIterator enumerateChildren(NodeTest arg0)

getFirstChild

public final NodeInfo getFirstChild()

Overrides:

getFirstChild in class NodeImpl

getLastChild

public final NodeInfo getLastChild()

Overrides:

getLastChild in class NodeImpl

getNthChild

protected final NodeImpl getNthChild(int arg0)

getStringValue

public String getStringValue()

getStringValueCS

public CharSequence getStringValueCS()

Specified by:

getStringValueCS in interface Item

Specified by:

getStringValueCS in interface ValueRepresentation

Overrides:

getStringValueCS in class NodeImpl

useChildrenArray

public void useChildrenArray(NodeImpl[] arg0)

addChild

public void addChild(NodeImpl arg0,
                     int arg1)

compact

public void compact(int arg0)