org.cdlib.xtf.saxonExt.exec
Class PipeImageElement

Object
  extended by NodeImpl
      extended by ElementImpl
          extended by ElementWithAttributes
              extended by StyleElement
                  extended by ExtensionInstruction
                      extended by RunElement
                          extended by 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)