org.cdlib.xtf.saxonExt.image
Class OutputElement

Object
  NodeImpl
      ElementImpl
          ElementWithAttributes
              StyleElement
                  ExtensionInstruction
                      OutputElement

All Implemented Interfaces:

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

public class OutputElement
extends ExtensionInstruction

Implements a Saxon instruction that reads an image from the filesystem, optionally modifies it in various ways, and outputs it directly via the current HttpServletResponse.

Author:

Martin Haye

Nested Class Summary

private static class	OutputElement.OutputInstruction
private static class	OutputElement.Rect A rectangle on the image

Field Summary

(package private) HashMap<String,Expression>	attribs
(package private) boolean	flipY
private static ImageCache	imageCache
private static int	outColorBase
protected int	sequence

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

OutputElement()

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()
boolean	mayContainSequenceConstructor() Determine whether this type of element is allowed to contain a template-body
void	prepareAttributes()
void	useChildrenArray(NodeImpl[] arg0)

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, 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

attribs

HashMap<String,Expression> attribs

flipY

boolean flipY

outColorBase

private static final int outColorBase

See Also:

Constant Field Values

imageCache

private static final ImageCache imageCache

sequence

protected int sequence

Constructor Detail

OutputElement

public OutputElement()

Method Detail

prepareAttributes

public void prepareAttributes()
                       throws XPathException

Specified by:

prepareAttributes in class StyleElement

Throws:

XPathException

mayContainSequenceConstructor

public boolean mayContainSequenceConstructor()

Determine whether this type of element is allowed to contain a template-body

Overrides:

mayContainSequenceConstructor in class StyleElement

compile

public Expression compile(Executable exec)
                   throws XPathException

Specified by:

compile in class StyleElement

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)