Yes, in retrospect "substitutes" or something of the sort would have been a better name than "extends". Another thing to clean up for 2.0 binding definitions.
- Dennis Dennis M. Sosnoski SOA and Web Services in Java Training and Consulting http://www.sosnoski.com - http://www.sosnoski.co.nz Seattle, WA +1-425-939-0576 - Wellington, NZ +64-4-298-6117 Joanna Muench wrote: > Thanks for the clarification, Dennis. The documentation definitely could use > some work, since I would say the use of the attribute name "extends" in this > situation breaks the principle of least surprise, leading at least this > impatient developer down the wrong path. Unfortunately a cursory glance at > Figure 16 reinforced my mis-interpretation. Testing documentation is much > harder > than testing code. > > Joanna > > > Dennis Sosnoski wrote: > >> Hi Joanna, >> >> The extends="..." attribute is only needed for a mapping when you're >> implementing the equivalent of schema substitution groups. It's not >> intended for use where you're just doing the equivalent of schema type >> extension. The tutorial at >> http://jibx.sourceforge.net/tutorial/binding-mappings.html#inherit has >> some discussion of this, though it's probably not as clear as it should >> be about the distinction. >> >> - Dennis >> >> Dennis M. Sosnoski >> SOA and Web Services in Java >> Training and Consulting >> http://www.sosnoski.com - http://www.sosnoski.co.nz >> Seattle, WA +1-425-939-0576 - Wellington, NZ +64-4-298-6117 >> >> >> >> Joanna Muench wrote: >> >>> I've encountered this error and I'm not sure how to work around it. >>> The scenario is that I have two schemas I'm trying to map and recently >>> created a new type, ModeledNumericQuantity, that extends an existing >>> type NumericQuantity. The new mapping looks as such: >>> >>> <mapping abstract="true" >>> class="edu.iris.ws.core.ModeledNumericQuantity" >>> extends="edu.iris.ws.base.NumericQuantity"> >>> <structure name="Residual" field="residual" usage="optional"/> >>> </mapping> >>> >>> But once I add this, I get an error on all my structures that use >>> NumericQuantity: >>> name attribute not allowed on reference to mapping with extensions; >>> >>> These structure look like this: >>> <structure name="Depth" field="depth"/> >>> >>> But if I remove the name attribute, not too surprisingly I get a class >>> cast exception: >>> java.lang.ClassCastException: edu.iris.ws.base.NumericQuantity >>> >>> The schemas I am working from are online at: >>> http://www.iris.edu/schema/common/xml/baseDataTypes.xsd >>> http://www.iris.edu/schema/common/xml/coreDataTypes.xsd >>> >>> The bindings are attached. Any help on how to refer to mappings with >>> extensions would be most appreciated. >>> >>> Thanks, Joanna >>> >>> >>> >>> ------------------------------------------------------------------------ >>> >>> <?xml version="1.0" encoding="UTF-8"?> >>> <binding xmlns:xsd="http://www.iris.edu/phasepick/xsd";> >>> >>> <mapping abstract="true" class="edu.iris.ws.base.Author"> >>> <value name="Name" field="name" usage="optional"/> >>> <value name="AuthorKey" field="authorKey" usage="optional"/> >>> <structure name="Link" field="link" usage="optional"/> >>> <structure name="Comment" field="comment" usage="optional"/> >>> <structure name="Institution" field="institution" usage="optional"/> >>> <value name="ID" field="ID" style="attribute"/> >>> </mapping> >>> >>> <mapping abstract="true" class="edu.iris.ws.base.Link"> >>> <value name="Description" field="description" usage="optional"/> >>> <value name="URL" field="url" style="attribute"/> >>> <value name="title" field="title" style="attribute"/> >>> </mapping> >>> >>> <mapping abstract="true" class="edu.iris.ws.base.Comment"> >>> <value name="Text" field="text" usage="optional"/> >>> <structure name="Author" usage="optional"/> >>> <structure name="Link" usage="optional"/> >>> </mapping> >>> >>> <mapping abstract="true" class="edu.iris.ws.base.ExtraElements"> >>> <structure ordered="false" choice="true"> >>> <structure name="Comment" field="comment" usage="optional"/> >>> <structure name="Link" field="link" usage="optional"/> >>> </structure> >>> <value name="CreateTime" field="createTime"/> >>> </mapping> >>> >>> <mapping abstract="true" class="edu.iris.ws.base.ErrorDescription"> >>> <value name="errorType" field="errorType" style="attribute"/> >>> <value name="errorUnits" field="errorUnits" style="attribute" >>> usage="optional"/> >>> <value name="errorValue" field="errorValue" style="attribute"/> >>> </mapping> >>> >>> <mapping abstract="true" class="edu.iris.ws.base.NumericQuantity"> >>> <collection field="errors" usage="optional"> >>> <structure name="Error"/> >>> </collection> >>> <value name="value" field="value" style="attribute"/> >>> <value name="units" field="units" style="attribute" >>> usage="optional"/> >>> </mapping> >>> >>> <mapping abstract="true" class="edu.iris.ws.base.TimeQuantity"> >>> <collection field="errors" usage="optional"> >>> <structure name="Error"/> >>> </collection> >>> <value name="value" field="value" style="attribute"/> >>> </mapping> >>> >>> <mapping abstract="true" class="edu.iris.ws.base.GeoLocation"> >>> <structure field="latitude"/> >>> <structure field="longitude"/> >>> <structure field="elevation" usage="optional"/> >>> <value name="datum" field="datum" usage="optional" >>> default="WGS84"/> >>> </mapping> >>> >>> <mapping abstract="true" class="edu.iris.ws.base.TimeRange"> >>> <value name="startTime" field="startTime" style="attribute"/> >>> <value name="stopTime" field="stopTime" style="attribute" >>> usage="optional"/> >>> </mapping> >>> >>> </binding> >>> >>> ------------------------------------------------------------------------ >>> >>> <?xml version="1.0" encoding="UTF-8"?> >>> <binding xmlns:xsd="http://www.iris.edu/phasepick/xsd";> >>> >>> <mapping abstract="true" class="edu.iris.ws.core.OriginLocation" >>> extends="edu.iris.ws.base.GeoLocation"> >>> <structure map-as="edu.iris.ws.base.GeoLocation"/> >>> <structure name="Depth" field="depth"/> >>> <value name="Time" field="time"/> >>> </mapping> >>> >>> <mapping abstract="true" class="edu.iris.ws.core.SeismicRegion"> >>> <value name="code" field="code" style="attribute"/> >>> <value field="name" style="text" usage="optional"/> >>> </mapping> >>> >>> <mapping abstract="true" class="edu.iris.ws.core.Residual"> >>> <value name="residual" field="residual" style="attribute"/> >>> <value name="units" field="units" style="attribute" >>> usage="optional"/> >>> <value name="modelName" field="modelName" style="attribute" >>> usage="optional"/> >>> </mapping> >>> >>> <mapping abstract="true" class="edu.iris.ws.core.ModeledTimeQuantity" >>> extends="edu.iris.ws.base.TimeQuantity"> >>> <structure name="Residual" field="residual" usage="optional"/> >>> </mapping> >>> >>> <mapping abstract="true" class="edu.iris.ws.core.ModeledNumericQuantity" >>> extends="edu.iris.ws.base.NumericQuantity"> >>> <structure name="Residual" field="residual" usage="optional"/> >>> >>> </mapping> >>> >>> <mapping type-name="xsd:EventType" abstract="true" >>> class="edu.iris.ws.core.Event"> >>> <structure name="Author" field="author"/> >>> <structure name="PreferredOrigin" field="preferredOrigin" >>> map-as="xsd:OriginType" usage="optional"/> >>> <collection field="origins"> >>> <structure name="Origin" map-as="xsd:OriginType"/> >>> </collection> >>> </mapping> >>> >>> <mapping type-name="xsd:OriginType" abstract="true" >>> class="edu.iris.ws.core.Origin"> >>> <value name="Catalog" field="catalog" usage="optional"/> >>> <structure name="Contributor" field="contributor"/> >>> <structure name="Source" field="source" usage="optional"/> >>> <structure name="Location" field="location"/> >>> <structure name="Region" field="region" usage="optional"/> >>> <structure name="SemiMajorAxisLength" field="semiMajorAxis" >>> usage="optional"/> >>> <structure name="SemiMinorAxisLength" field="semiMinorAxis" >>> usage="optional"/> >>> <structure name="OriginSolution" field="originSolution" >>> map-as="xsd:OriginSolutionType" usage="optional"/> >>> <structure name="PreferredMagnitude" field="preferredMagnitude" >>> map-as="xsd:MagnitudeType" usage="optional"/> >>> <collection field="magnitudes" > >>> <structure name="Magnitude" map-as="xsd:MagnitudeType"/> >>> </collection> >>> <collection field="arrivals"> >>> <structure name="Arrival" map-as="xsd:ArrivalType"/> >>> </collection> >>> <structure field="extraElements" usage="optional"/> >>> </mapping> >>> >>> <mapping type-name="xsd:MagnitudeType" abstract="true" >>> class="edu.iris.ws.core.Magnitude"> >>> <value name="type" field="type" style="attribute"/> >>> <value name="value" field="value" style="attribute"/> >>> <structure name="Contributor" field="contributor" usage="optional"/> >>> <value name="Version" field="version" usage="optional"/> >>> <value name="NumStations" field="numStations" usage="optional"/> >>> <structure name="Error" field="errorDescription" usage="optional"/> >>> <structure field="extraElements" usage="optional"/> >>> </mapping> >>> >>> <mapping type-name="xsd:ArrivalType" abstract="true" >>> class="edu.iris.ws.core.Arrival"> >>> <structure name="Contributor" field="contributor" usage="optional"/> >>> <structure name="WaveformIdentifier" field="waveformId" >>> map-as="xsd:WaveformIdentifierType"/> >>> <value name="Phase" field="phase"/> >>> <structure name="ArrivalTime" field="arrivalTime"/> >>> <structure name="EventStationDistance" >>> field="eventStationDistance"/> >>> <structure name="EventStationAzimuth" field="eventStationAzimuth"/> >>> <!-- >>> <structure name="ObservedAzimuth" field="observedAzimuth" >>> usage="optional"/> >>> <structure name="ObservedSlowness" field="observedSlowness" >>> usage="optional"/> >>> <value name="SignalNoiseRatio" field="signalNoiseRatio" >>> usage="optional"/> >>> <structure name="Amplitude" field="amplitude" usage="optional"/> >>> <structure name="Period" field="period" usage="optional"/> >>> <value name="Pick" field="pick" usage="optional"/> >>> <value name="OnsetQuality" field="onsetQuality" usage="optional"/> >>> <value name="Filter" field="filter" usage="optional"/> >>> <structure field="extraElements" usage="optional"/> >>> --> >>> </mapping> >>> >>> <mapping type-name="xsd:WaveformIdentifierType" abstract="true" >>> class="edu.iris.ws.core.WaveformId"> >>> <structure name="ChannelIdentifier" field="channel" >>> map-as="xsd:ChannelIdType"/> >>> <structure name="TimeRange" field="timeRange" usage="optional"/> >>> </mapping> >>> >>> <mapping type-name="xsd:ChannelIdType" abstract="true" >>> class="edu.iris.ws.core.ChannelId"> >>> <structure name="Network"> >>> <structure name="Institution"> >>> <value name="id" field="institutionId" style="attribute" >>> usage="optional" default="FSDN"/> >>> </structure> >>> <value name="code" field="networkCode" style="attribute"/> >>> </structure> >>> <structure name="Station"> >>> <value name="code" field="stationCode" style="attribute"/> >>> </structure> >>> <structure name="Channel"> >>> <value name="code" field="channelCode" style="attribute"/> >>> </structure> >>> <structure name="Location"> >>> <value name="code" field="locationCode" style="attribute" >>> usage="optional"/> >>> </structure> >>> <structure field="extraElements" usage="optional"/> >>> </mapping> >>> >>> <mapping type-name="xsd:OriginSolutionType" abstract="true" >>> class="edu.iris.ws.core.OriginSolution"> >>> <value name="NumberPhases" field="numberPhases" usage="optional"/> >>> <value name="NumberStations" field="numberStations" >>> usage="optional"/> >>> <value name="AzimuthGapDegrees" field="azimuthGap" >>> usage="optional"/> >>> <structure name="MinStationDistance" field="minStationDist" >>> usage="optional"/> >>> <structure name="MaxStationDistance" field="maxStationDist" >>> usage="optional"/> >>> <value name="LocationMethod" field="locationMethod" >>> usage="optional"/> >>> <value name="EventDescription" field="eventDescription" >>> usage="optional"/> >>> </mapping> >>> >>> >>> </binding> >>> ------------------------------------------------------------------------ >>> >>> ------------------------------------------------------------------------- >>> This SF.net email is sponsored by DB2 Express >>> Download DB2 Express C - the FREE version of DB2 express and take >>> control of your XML. 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