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## org.apache.fop.fo
Interface FOValidationEventProducer

    public interface FOValidationEventProducer

Event producer interface for XSL-FO validation messages.

Nested Class Summary
`static class` | `FOValidationEventProducer.Provider` Provider class for the event producer.

Method Summary
`void` | `altTextMissing(java.lang.Object source, java.lang.String foElement, org.xml.sax.Locator loc)` Alternate text is missing for a graphic element.
`void` | `colorProfileNameNotUnique(java.lang.Object source, java.lang.String elementName, java.lang.String name, org.xml.sax.Locator loc)` There are multiple color profiles defined with the same name.
`void` | `columnCountErrorOnRegionBodyOverflowScroll(java.lang.Object source, java.lang.String elementName, org.xml.sax.Locator loc)` If overflow property is set to "scroll", a column-count other than "1" may not be specified.
`void` | `duplicateFlowNameInPageSequence(java.lang.Object source, java.lang.String elementName, java.lang.String flowName, org.xml.sax.Locator loc)` There are multiple flows with the same name.
`void` | `emptyDocument(java.lang.Object source)` No FO document was found.
`void` | `flowNameNotMapped(java.lang.Object source, java.lang.String elementName, java.lang.String flowName, org.xml.sax.Locator loc)` A flow name could not be mapped to a region.
`void` | `idNotUnique(java.lang.Object source, java.lang.String elementName, java.lang.String id, boolean canRecover, org.xml.sax.Locator loc)` An id was used twice in a document.
`void` | `illegalRegionName(java.lang.Object source, java.lang.String elementName, java.lang.String regionName, org.xml.sax.Locator loc)` An illegal region name was used.
`void` | `invalidChild(java.lang.Object source, java.lang.String elementName, org.apache.xmlgraphics.util.QName offendingNode, java.lang.String ruleViolated, org.xml.sax.Locator loc)` An invalid child was encountered.
`void` | `invalidFORoot(java.lang.Object source, java.lang.String elementName, org.xml.sax.Locator loc)` fo:root must be root.
`void` | `invalidProperty(java.lang.Object source, java.lang.String elementName, org.apache.xmlgraphics.util.QName attr, boolean canRecover, org.xml.sax.Locator loc)` An invalid property was found.
`void` | `invalidPropertyValue(java.lang.Object source, java.lang.String elementName, java.lang.String propName, java.lang.String propValue, PropertyException e, org.xml.sax.Locator loc)` An invalid property value was encountered.
`void` | `markerBlockContainerAbsolutePosition(java.lang.Object source, org.xml.sax.Locator loc)` An fo:marker appears as initial descendant in an fo:block-container that generates absolutely positioned areas
`void` | `markerCloningFailed(java.lang.Object source, java.lang.String markerClassName, FOPException fe, org.xml.sax.Locator loc)` Indicates a problem while cloning a marker (ex.
`void` | `markerNotInitialChild(java.lang.Object source, java.lang.String elementName, java.lang.String mcname, org.xml.sax.Locator loc)` A marker is not an initial child on a node.
`void` | `markerNotUniqueForSameParent(java.lang.Object source, java.lang.String elementName, java.lang.String mcname, org.xml.sax.Locator loc)` A marker class name is not unique within the same parent.
`void` | `masterNameNotUnique(java.lang.Object source, java.lang.String elementName, java.lang.String name, org.xml.sax.Locator loc)` There are multiple page masters defined with the same name.
`void` | `masterNotFound(java.lang.Object source, java.lang.String elementName, java.lang.String masterReference, org.xml.sax.Locator loc)` A page master could not be found.
`void` | `missingChildElement(java.lang.Object source, java.lang.String elementName, java.lang.String contentModel, boolean canRecover, org.xml.sax.Locator loc)` A required child element is missing.
`void` | `missingLinkDestination(java.lang.Object source, java.lang.String elementName, org.xml.sax.Locator loc)` Missing internal-/external-destination on basic-link or bookmark.
`void` | `missingProperty(java.lang.Object source, java.lang.String elementName, java.lang.String propertyName, org.xml.sax.Locator loc)` An element is missing a required property.
`void` | `nodeOutOfOrder(java.lang.Object source, java.lang.String elementName, java.lang.String tooLateNode, java.lang.String tooEarlyNode, boolean canRecover, org.xml.sax.Locator loc)` The node order is wrong.
`void` | `nonZeroBorderPaddingOnRegion(java.lang.Object source, java.lang.String elementName, java.lang.String regionName, boolean canRecover, org.xml.sax.Locator loc)` A non-zero border and/or padding has been encountered on a region.
`void` | `notSupportedChild(java.lang.Object source, java.lang.String elementName, org.apache.xmlgraphics.util.QName offendingNode, org.xml.sax.Locator loc)` A valid but not yet supported child was encountered.
`void` | `regionNameMappedToMultipleRegionClasses(java.lang.Object source, java.lang.String regionName, java.lang.String defaultRegionClass1, java.lang.String defaultRegionClass2, org.xml.sax.Locator loc)` A region name is mapped to multiple region classes.
`void` | `tooManyNodes(java.lang.Object source, java.lang.String elementName, org.apache.xmlgraphics.util.QName offendingNode, org.xml.sax.Locator loc)` Too many child nodes.
`void` | `unimplementedFeature(java.lang.Object source, java.lang.String elementName, java.lang.String feature, org.xml.sax.Locator loc)` A feature is not supported, yet.
`void` | `unknownFormattingObject(java.lang.Object source, java.lang.String elementName, org.apache.xmlgraphics.util.QName offendingNode, org.xml.sax.Locator loc)` An unknown/unsupported formatting object has been encountered.
`void` | `warnOnInvalidPropertyValue(java.lang.Object source, java.lang.String elementName, java.lang.String propName, java.lang.String propValue, PropertyException e, org.xml.sax.Locator loc)` An invalid property value was encountered.

Method Detail

### tooManyNodes

    void tooManyNodes(java.lang.Object source,
                      java.lang.String elementName,
                      org.apache.xmlgraphics.util.QName offendingNode,
                      org.xml.sax.Locator loc)
                      throws ValidationException

  Too many child nodes.

  Parameters:
    `source` - the event source
    `elementName` - the name of the context node
    `offendingNode` - the offending node
    `loc` - the location of the error or null
  Throws:
    `ValidationException` - the validation error provoked by the method call
  Event severity level:
    FATAL

### nodeOutOfOrder

    void nodeOutOfOrder(java.lang.Object source,
                        java.lang.String elementName,
                        java.lang.String tooLateNode,
                        java.lang.String tooEarlyNode,
                        boolean canRecover,
                        org.xml.sax.Locator loc)
                        throws ValidationException

  The node order is wrong.

  Parameters:
    `source` - the event source
    `elementName` - the name of the context node
    `tooLateNode` - string name of node that should be earlier in document
    `tooEarlyNode` - string name of node that should be later in document
    `canRecover` - indicates whether FOP can recover from this problem and continue working
    `loc` - the location of the error or null
  Throws:
    `ValidationException` - the validation error provoked by the method call

### invalidChild

    void invalidChild(java.lang.Object source,
                      java.lang.String elementName,
                      org.apache.xmlgraphics.util.QName offendingNode,
                      java.lang.String ruleViolated,
                      org.xml.sax.Locator loc)
                      throws ValidationException

  An invalid child was encountered.

  Parameters:
    `source` - the event source
    `elementName` - the name of the context node
    `offendingNode` - the offending node
    `ruleViolated` - the rule that was violated or null
    `loc` - the location of the error or null
  Throws:
    `ValidationException` - the validation error provoked by the method call

### notSupportedChild

    void notSupportedChild(java.lang.Object source,
                           java.lang.String elementName,
                           org.apache.xmlgraphics.util.QName offendingNode,
                           org.xml.sax.Locator loc)
                           throws ValidationException

  A valid but not yet supported child was encountered.

  Parameters:
    `source` - the event source
    `elementName` - the name of the context node
    `offendingNode` - the offending node
    `loc` - the location of the error or null
  Throws:
    `ValidationException` - the validation error provoked by the method call

### missingChildElement

    void missingChildElement(java.lang.Object source,
                             java.lang.String elementName,
                             java.lang.String contentModel,
                             boolean canRecover,
                             org.xml.sax.Locator loc)
                             throws ValidationException

  A required child element is missing.

  Parameters:
    `source` - the event source
    `elementName` - the name of the context node
    `contentModel` - the expected content model
    `canRecover` - indicates whether FOP can recover from this problem and continue working
    `loc` - the location of the error or null
  Throws:
    `ValidationException` - the validation error provoked by the method call
  Event severity level:
    FATAL

### missingProperty

    void missingProperty(java.lang.Object source,
                         java.lang.String elementName,
                         java.lang.String propertyName,
                         org.xml.sax.Locator loc)
                         throws ValidationException

  An element is missing a required property.

  Parameters:
    `source` - the event source
    `elementName` - the name of the context node
    `propertyName` - the name of the missing property
    `loc` - the location of the error or null
  Throws:
    `ValidationException` - the validation error provoked by the method call
  Event severity level:
    FATAL

### idNotUnique

    void idNotUnique(java.lang.Object source,
                     java.lang.String elementName,
                     java.lang.String id,
                     boolean canRecover,
                     org.xml.sax.Locator loc)
                     throws ValidationException

  An id was used twice in a document.

  Parameters:
    `source` - the event source
    `elementName` - the name of the context node
    `id` - the id that was reused
    `canRecover` - indicates whether FOP can recover from this problem and continue working
    `loc` - the location of the error or null
  Throws:
    `ValidationException` - the validation error provoked by the method call
  Event severity level:
    FATAL

### colorProfileNameNotUnique

    void colorProfileNameNotUnique(java.lang.Object source,
                                   java.lang.String elementName,
                                   java.lang.String name,
                                   org.xml.sax.Locator loc)

  There are multiple color profiles defined with the same name.

  Parameters:
    `source` - the event source
    `elementName` - the name of the context node
    `name` - the duplicate color profile name
    `loc` - the location of the error or null
  Event severity level:
    WARN

### masterNameNotUnique

    void masterNameNotUnique(java.lang.Object source,
                             java.lang.String elementName,
                             java.lang.String name,
                             org.xml.sax.Locator loc)
                             throws ValidationException

  There are multiple page masters defined with the same name.

  Parameters:
    `source` - the event source
    `elementName` - the name of the context node
    `name` - the duplicate page master name
    `loc` - the location of the error or null
  Throws:
    `ValidationException` - the validation error provoked by the method call
  Event severity level:
    FATAL

### markerBlockContainerAbsolutePosition

    void markerBlockContainerAbsolutePosition(java.lang.Object source,
                                              org.xml.sax.Locator loc)

  An fo:marker appears as initial descendant in an fo:block-container that generates absolutely positioned areas

  Parameters:
    `source` - the event source
    `loc` - the location of the error (possibly null)
  Event severity level:
    ERROR

### markerNotInitialChild

    void markerNotInitialChild(java.lang.Object source,
                               java.lang.String elementName,
                               java.lang.String mcname,
                               org.xml.sax.Locator loc)

  A marker is not an initial child on a node.

  Parameters:
    `source` - the event source
    `elementName` - the name of the context node
    `mcname` - the marker class name
    `loc` - the location of the error or null
  Event severity level:
    ERROR

### markerNotUniqueForSameParent

    void markerNotUniqueForSameParent(java.lang.Object source,
                                      java.lang.String elementName,
                                      java.lang.String mcname,
                                      org.xml.sax.Locator loc)

  A marker class name is not unique within the same parent.

  Parameters:
    `source` - the event source
    `elementName` - the name of the context node
    `mcname` - the marker class name
    `loc` - the location of the error or null
  Event severity level:
    ERROR

### invalidProperty

    void invalidProperty(java.lang.Object source,
                         java.lang.String elementName,
                         org.apache.xmlgraphics.util.QName attr,
                         boolean canRecover,
                         org.xml.sax.Locator loc)
                         throws ValidationException

  An invalid property was found.

  Parameters:
    `source` - the event source
    `elementName` - the name of the context node
    `attr` - the invalid attribute
    `canRecover` - indicates whether FOP can recover from this problem and continue working
    `loc` - the location of the error or null
  Throws:
    `ValidationException` - the validation error provoked by the method call
  Event severity level:
    FATAL

### invalidPropertyValue

    void invalidPropertyValue(java.lang.Object source,
                              java.lang.String elementName,
                              java.lang.String propName,
                              java.lang.String propValue,
                              PropertyException e,
                              org.xml.sax.Locator loc)

  An invalid property value was encountered.

  Parameters:
    `source` - the event source
    `elementName` - the name of the context node
    `propName` - the property name
    `propValue` - the property value
    `e` - the property exception caused by the invalid value
    `loc` - the location of the error or null
  Event severity level:
    ERROR

### warnOnInvalidPropertyValue

    void warnOnInvalidPropertyValue(java.lang.Object source,
                                    java.lang.String elementName,
                                    java.lang.String propName,
                                    java.lang.String propValue,
                                    PropertyException e,
                                    org.xml.sax.Locator loc)

  An invalid property value was encountered.

  Parameters:
    `source` - the event source
    `elementName` - the name of the context node
    `propName` - the property name
    `propValue` - the property value
    `e` - the property exception caused by the invalid value
    `loc` - the location of the error or null
  Event severity level:
    WARN

### unimplementedFeature

    void unimplementedFeature(java.lang.Object source,
                              java.lang.String elementName,
                              java.lang.String feature,
                              org.xml.sax.Locator loc)

  A feature is not supported, yet.

  Parameters:
    `source` - the event source
    `elementName` - the name of the context node
    `feature` - the unsupported feature
    `loc` - the location of the error or null
  Event severity level:
    WARN

### missingLinkDestination

    void missingLinkDestination(java.lang.Object source,
                                java.lang.String elementName,
                                org.xml.sax.Locator loc)
                                throws ValidationException

  Missing internal-/external-destination on basic-link or bookmark.

  Parameters:
    `source` - the event source
    `elementName` - the name of the context node
    `loc` - the location of the error or null
  Throws:
    `ValidationException` - the validation error provoked by the method call
  Event severity level:
    FATAL

### markerCloningFailed

    void markerCloningFailed(java.lang.Object source,
                             java.lang.String markerClassName,
                             FOPException fe,
                             org.xml.sax.Locator loc)

  Indicates a problem while cloning a marker (ex. due to invalid property values).

  Parameters:
    `source` - the event source
    `markerClassName` - the "marker-class-name" of the marker
    `fe` - the FOP exception that cause this problem
    `loc` - the location of the error or null
  Event severity level:
    ERROR

### regionNameMappedToMultipleRegionClasses

    void regionNameMappedToMultipleRegionClasses(java.lang.Object source,
                                                 java.lang.String regionName,
                                                 java.lang.String defaultRegionClass1,
                                                 java.lang.String defaultRegionClass2,
                                                 org.xml.sax.Locator loc)
                                                 throws ValidationException

  A region name is mapped to multiple region classes.

  Parameters:
    `source` - the event source
    `regionName` - the region name
    `defaultRegionClass1` - the first default region class
    `defaultRegionClass2` - the second default region class
    `loc` - the location of the error or null
  Throws:
    `ValidationException` - the validation error provoked by the method call
  Event severity level:
    FATAL

### duplicateFlowNameInPageSequence

    void duplicateFlowNameInPageSequence(java.lang.Object source,
                                         java.lang.String elementName,
                                         java.lang.String flowName,
                                         org.xml.sax.Locator loc)
                                         throws ValidationException

  There are multiple flows with the same name.

  Parameters:
    `source` - the event source
    `elementName` - the name of the context node
    `flowName` - the flow name
    `loc` - the location of the error or null
  Throws:
    `ValidationException` - the validation error provoked by the method call
  Event severity level:
    FATAL

### flowNameNotMapped

    void flowNameNotMapped(java.lang.Object source,
                           java.lang.String elementName,
                           java.lang.String flowName,
                           org.xml.sax.Locator loc)
                           throws ValidationException

  A flow name could not be mapped to a region.

  Parameters:
    `source` - the event source
    `elementName` - the name of the context node
    `flowName` - the flow name
    `loc` - the location of the error or null
  Throws:
    `ValidationException` - the validation error provoked by the method call
  Event severity level:
    FATAL

### masterNotFound

    void masterNotFound(java.lang.Object source,
                        java.lang.String elementName,
                        java.lang.String masterReference,
                        org.xml.sax.Locator loc)
                        throws ValidationException

  A page master could not be found.

  Parameters:
    `source` - the event source
    `elementName` - the name of the context node
    `masterReference` - the page master reference
    `loc` - the location of the error or null
  Throws:
    `ValidationException` - the validation error provoked by the method call
  Event severity level:
    FATAL

### illegalRegionName

    void illegalRegionName(java.lang.Object source,
                           java.lang.String elementName,
                           java.lang.String regionName,
                           org.xml.sax.Locator loc)
                           throws ValidationException

  An illegal region name was used.

  Parameters:
    `source` - the event source
    `elementName` - the name of the context node
    `regionName` - the region name
    `loc` - the location of the error or null
  Throws:
    `ValidationException` - the validation error provoked by the method call
  Event severity level:
    FATAL

### nonZeroBorderPaddingOnRegion

    void nonZeroBorderPaddingOnRegion(java.lang.Object source,
                                      java.lang.String elementName,
                                      java.lang.String regionName,
                                      boolean canRecover,
                                      org.xml.sax.Locator loc)
                                      throws ValidationException

  A non-zero border and/or padding has been encountered on a region.

  Parameters:
    `source` - the event source
    `elementName` - the name of the context node
    `regionName` - the region name
    `canRecover` - indicates whether FOP can recover from this problem and continue working
    `loc` - the location of the error or null
  Throws:
    `ValidationException` - the validation error provoked by the method call
  Event severity level:
    FATAL

### columnCountErrorOnRegionBodyOverflowScroll

    void columnCountErrorOnRegionBodyOverflowScroll(java.lang.Object source,
                                                    java.lang.String elementName,
                                                    org.xml.sax.Locator loc)
                                                    throws ValidationException

  If overflow property is set to "scroll", a column-count other than "1" may not be specified.

  Parameters:
    `source` - the event source
    `elementName` - the name of the context node
    `loc` - the location of the error or null
  Throws:
    `ValidationException` - the validation error provoked by the method call
  Event severity level:
    FATAL

### invalidFORoot

    void invalidFORoot(java.lang.Object source,
                       java.lang.String elementName,
                       org.xml.sax.Locator loc)
                       throws ValidationException

  fo:root must be root.

  Parameters:
    `source` - the event source
    `elementName` - the name of the context node
    `loc` - the location of the error or null
  Throws:
    `ValidationException` - the validation error provoked by the method call
  Event severity level:
    FATAL

### emptyDocument

    void emptyDocument(java.lang.Object source)
                       throws ValidationException

  No FO document was found.

  Parameters:
    `source` - the event source
  Throws:
    `ValidationException` - the validation error provoked by the method call
  Event severity level:
    FATAL

### unknownFormattingObject

    void unknownFormattingObject(java.lang.Object source,
                                 java.lang.String elementName,
                                 org.apache.xmlgraphics.util.QName offendingNode,
                                 org.xml.sax.Locator loc)

  An unknown/unsupported formatting object has been encountered.

  Parameters:
    `source` - the event source
    `elementName` - the name of the context node
    `offendingNode` - the offending node
    `loc` - the location of the error or null
  Event severity level:
    WARN

### altTextMissing

    void altTextMissing(java.lang.Object source,
                        java.lang.String foElement,
                        org.xml.sax.Locator loc)

  Alternate text is missing for a graphic element.

  Parameters:
    `source` - the event source
    `foElement` - name of the element (external-graphic or instream-foreign-object)
    `loc` - the location of the error or null
  Event severity level:
    WARN

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| fop 2.2
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Copyright 1999-2017 The Apache Software Foundation. All Rights Reserved.