Package org.apache.ibatis.mapping

Examples of org.apache.ibatis.mapping.ResultMap

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    }
    return propertyValue;
  }

  private ResultMap getNestedResultMap(ResultSet rs, String nestedResultMapId) throws SQLException {
    ResultMap nestedResultMap = configuration.getResultMap(nestedResultMapId);
    nestedResultMap = resolveDiscriminatedResultMap(rs, nestedResultMap);
    return nestedResultMap;
  }
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  private String processNestedResultMappings(XNode context, List<ResultMapping> resultMappings) throws Exception {
    if ("association".equals(context.getName())
        || "collection".equals(context.getName())
        || "case".equals(context.getName())) {
      if (context.getStringAttribute("select") == null) {
        ResultMap resultMap = resultMapElement(context, resultMappings);
        return resultMap.getId();
      }
    }
    return null;
  }
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  protected void checkGloballyForDiscriminatedNestedResultMaps(ResultMap rm) {
    if (rm.hasNestedResultMaps()) {
      for (Map.Entry entry : resultMaps.entrySet()) {
        Object value = entry.getValue();
        if (value instanceof ResultMap) {
          ResultMap entryResultMap = (ResultMap) value;
          if (!entryResultMap.hasNestedResultMaps() && entryResultMap.getDiscriminator() != null) {
            Collection<String> discriminatedResultMapNames = entryResultMap.getDiscriminator().getDiscriminatorMap().values();
            if (discriminatedResultMapNames.contains(rm.getId())) {
              entryResultMap.forceNestedResultMaps();
            }
          }
        }
      }
    }
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  protected void checkLocallyForDiscriminatedNestedResultMaps(ResultMap rm) {
    if (!rm.hasNestedResultMaps() && rm.getDiscriminator() != null) {
      for (Map.Entry entry : rm.getDiscriminator().getDiscriminatorMap().entrySet()) {
        String discriminatedResultMapName = (String) entry.getValue();
        if (hasResultMap(discriminatedResultMapName)) {
          ResultMap discriminatedResultMap = resultMaps.get(discriminatedResultMapName);
          if (discriminatedResultMap.hasNestedResultMaps()) {
            rm.forceNestedResultMaps();
            break;
          }
        }
      }
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  protected void handleRowValues(ResultSet rs, ResultMap resultMap, ResultHandler resultHandler, RowBounds rowBounds) throws SQLException {
    final DefaultResultContext resultContext = new DefaultResultContext();
    skipRows(rs, rowBounds);
    while (shouldProcessMoreRows(rs, resultContext, rowBounds)) {
      final ResultMap discriminatedResultMap = resolveDiscriminatedResultMap(rs, resultMap);
      final CacheKey rowKey = createRowKey(discriminatedResultMap, rs);
      final boolean knownValue = globalRowValueCache.containsKey(rowKey);
      Object rowValue = getRowValue(rs, discriminatedResultMap, rowKey);
      if (!knownValue) {
        resultContext.nextResultObject(rowValue);
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    boolean foundValues = false;
    for (ResultMapping resultMapping : resultMap.getPropertyResultMappings()) {
      final String nestedResultMapId = resultMapping.getNestedResultMapId();
      if (nestedResultMapId != null) {
        try {
          final ResultMap nestedResultMap = getNestedResultMap(rs, nestedResultMapId);
          final Object collectionProperty = instantiateCollectionPropertyIfAppropriate(resultMapping, metaObject);

          final CacheKey parentRowKey = createRowKey(resultMap, rs);
          final CacheKey rowKey = createRowKey(nestedResultMap, rs);
          final Set<CacheKey> localRowValueCache = getRowValueCache(parentRowKey);
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    }
    return propertyValue;
  }

  private ResultMap getNestedResultMap(ResultSet rs, String nestedResultMapId) throws SQLException {
    ResultMap nestedResultMap = configuration.getResultMap(nestedResultMapId);
    nestedResultMap = resolveDiscriminatedResultMap(rs, nestedResultMap);
    return nestedResultMap;
  }
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  }

  public static MappedStatement prepareSelectOneAuthorMappedStatement(final Configuration config) {
    final TypeHandlerRegistry registry = config.getTypeHandlerRegistry();

    final ResultMap rm = new ResultMap.Builder(config, "defaultResultMap", Author.class, new
        ArrayList<ResultMapping>() {
          {
            add(new ResultMapping.Builder(config, "id", "id", registry.getTypeHandler(int.class)).build());
            add(new ResultMapping.Builder(config, "username", "username", registry.getTypeHandler(String.class)).build());
            add(new ResultMapping.Builder(config, "password", "password", registry.getTypeHandler(String.class)).build());
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                add(new ParameterMapping.Builder(config, "id2", registry.getTypeHandler(int.class)).build());
              }
            }).build())
        .resultMaps(new ArrayList<ResultMap>() {
          {
            ResultMap map = new ResultMap.Builder(config, "defaultResultMap", Author.class, new ArrayList<ResultMapping>() {
              {
                add(new ResultMapping.Builder(config, "id", "id", registry.getTypeHandler(int.class)).build());
                add(new ResultMapping.Builder(config, "username", "username", registry.getTypeHandler(String.class)).build());
                add(new ResultMapping.Builder(config, "password", "password", registry.getTypeHandler(String.class)).build());
                add(new ResultMapping.Builder(config, "email", "email", registry.getTypeHandler(String.class)).build());
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    return ms;
  }

  public static MappedStatement prepareSelectDiscriminatedPost(final Configuration config) {
    final TypeHandlerRegistry registry = config.getTypeHandlerRegistry();
    final ResultMap discriminatorResultMap = new ResultMap.Builder(config, "postResultMap", HashMap.class, new ArrayList<ResultMapping>() {
      {
        add(new ResultMapping.Builder(config, "subject", "subject", registry.getTypeHandler(String.class)).build());
        add(new ResultMapping.Builder(config, "body", "body", registry.getTypeHandler(String.class)).build());
      }
    }).build();
    config.addResultMap(discriminatorResultMap);
    MappedStatement ms = new MappedStatement.Builder(config, "selectPosts", new StaticSqlSource(config,"SELECT * FROM post"), SqlCommandType.SELECT)
        .resultMaps(new ArrayList<ResultMap>() {
          {
            add(new ResultMap.Builder(config, "defaultResultMap", HashMap.class, new ArrayList<ResultMapping>() {
              {
                add(new ResultMapping.Builder(config, "id", "id", registry.getTypeHandler(int.class)).build());
                add(new ResultMapping.Builder(config, "blog_id", "blog_id", registry.getTypeHandler(int.class)).build());
              }
            })
                .discriminator(new Discriminator.Builder(
                    config, new ResultMapping.Builder(config, "section", "section", registry.getTypeHandler(String.class)).build(),
                    new HashMap<String, String>() {
                      {
                        put("NEWS", discriminatorResultMap.getId());
                        put("VIDEOS", discriminatorResultMap.getId());
                        put("PODCASTS", discriminatorResultMap.getId());
                        //NEWS left out on purpose.
                      }
                    }).build()).build());

          }
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Related Classes of org.apache.ibatis.mapping.ResultMap

  • org.apache.ibatis.builder.MapperBuilderAssistant
  • org.apache.ibatis.builder.xml.XMLMapperBuilder
  • org.apache.ibatis.executor.ExecutorTestHelper
  • org.apache.ibatis.executor.resultset.DefaultResultSetHandler
  • org.apache.ibatis.executor.resultset.NestedResultSetHandler
  • org.apache.ibatis.session.Configuration
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