Example usage for org.apache.ibatis.mapping ResultMapping.Builder javaType

Introduction

In this page you can find the example usage for org.apache.ibatis.mapping ResultMapping.Builder javaType.

Prototype

Class javaType

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Usage

From source file:com.ibatis.sqlmap.engine.builder.XmlSqlMapParser.java

License:Apache License

@NodeEvent("/sqlMap/resultMap/discriminator")
public void sqlMapresultMapdiscriminator(XNode context) throws Exception {
    String nullValue = context.getStringAttribute("nullValue");
    if (nullValue != null) {
        throw new UnsupportedOperationException("Null value subsitution is not supported by iBATIS 3.");
    }//  ww  w.j  a va2  s  .  c  o m
    String columnIndexProp = context.getStringAttribute("columnIndex");
    if (columnIndexProp != null) {
        throw new UnsupportedOperationException(
                "Numerical column indices are not supported.  Use the column name instead.");
    }

    String jdbcType = context.getStringAttribute("jdbcType");
    String javaType = context.getStringAttribute("javaType");
    String columnName = context.getStringAttribute("column");
    String callback = context.getStringAttribute("typeHandler");

    Class javaClass = null;
    try {
        if (javaType != null && javaType.length() > 0) {
            javaClass = config.getTypeAliasRegistry().resolveAlias(javaType);
        }
    } catch (Exception e) {
        throw new RuntimeException("Error setting java type on result discriminator mapping.  Cause: " + e);
    }

    JdbcType jdbcTypeEnum = null;
    if (jdbcType != null) {
        jdbcTypeEnum = JdbcType.valueOf(jdbcType);
    }

    TypeHandler typeHandler = null;
    if (javaClass != null) {
        typeHandler = config.getTypeHandlerRegistry().getTypeHandler(javaClass, jdbcTypeEnum);
    }
    try {
        if (callback != null && callback.length() > 0) {
            typeHandler = (TypeHandler) config.getTypeAliasRegistry().resolveAlias(callback).newInstance();
        }
    } catch (Exception e) {
        throw new RuntimeException("Error occurred during custom type handler configuration.  Cause: " + e, e);
    }

    ResultMapping.Builder resultMappingBuilder = new ResultMapping.Builder(config, columnName, columnName,
            typeHandler);
    resultMappingBuilder.javaType(javaClass);
    resultMappingBuilder.jdbcType(jdbcTypeEnum);
    ResultMapping resultMapping = resultMappingBuilder.build();

    discriminatorSubMap = new HashMap<String, String>();
    discriminatorBuilder = new Discriminator.Builder(config, resultMapping, discriminatorSubMap);

}

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From source file:com.ibatis.sqlmap.engine.builder.XmlSqlMapParser.java

License:Apache License

@NodeEvent("/sqlMap/resultMap/result")
public void sqlMapresultMapresult(XNode context) throws Exception {
    String nullValue = context.getStringAttribute("nullValue");
    if (nullValue != null) {
        throw new UnsupportedOperationException("Null value subsitution is not supported by iBATIS 3.");
    }//from  w  ww  .j a  va 2 s . c o m
    String columnIndexProp = context.getStringAttribute("columnIndex");
    if (columnIndexProp != null) {
        throw new UnsupportedOperationException(
                "Numerical column indices are not supported.  Use the column name instead.");
    }

    String propertyName = context.getStringAttribute("property");
    String jdbcType = context.getStringAttribute("jdbcType");
    String javaType = context.getStringAttribute("javaType");
    String columnName = context.getStringAttribute("column");

    String statementName = context.getStringAttribute("select");
    String resultMapName = context.getStringAttribute("resultMap");
    String callback = context.getStringAttribute("typeHandler");

    Class javaClass = null;
    try {
        if (javaType != null && javaType.length() > 0) {
            javaClass = config.getTypeAliasRegistry().resolveAlias(javaType);
        }
    } catch (Exception e) {
        throw new RuntimeException("Error setting java type on result discriminator mapping.  Cause: " + e);
    }
    if (javaClass == null && !Map.class.isAssignableFrom(resultMapBuilder.type())
            && !config.getTypeHandlerRegistry().hasTypeHandler(resultMapBuilder.type())) {
        javaClass = MetaClass.forClass(resultMapBuilder.type()).getSetterType(propertyName);
    }
    if (javaClass == null && statementName != null) {
        javaClass = List.class;
    }

    JdbcType jdbcTypeEnum = null;
    if (jdbcType != null) {
        jdbcTypeEnum = JdbcType.valueOf(jdbcType);
    }

    TypeHandler typeHandler = null;
    if (javaClass != null) {
        typeHandler = config.getTypeHandlerRegistry().getTypeHandler(javaClass, jdbcTypeEnum);
    }
    try {
        if (callback != null && callback.length() > 0) {
            Object o = config.getTypeAliasRegistry().resolveAlias(callback).newInstance();
            if (o instanceof TypeHandlerCallback) {
                typeHandler = new TypeHandlerCallbackAdapter((TypeHandlerCallback) o);
            }
        }
    } catch (Exception e) {
        throw new RuntimeException("Error occurred during custom type handler configuration.  Cause: " + e, e);
    }
    if (typeHandler == null && config.getTypeHandlerRegistry().hasTypeHandler(resultMapBuilder.type())) {
        typeHandler = config.getTypeHandlerRegistry().getTypeHandler(resultMapBuilder.type());
    }

    if (typeHandler == null) {
        Class resultClass = resultMapBuilder.type();
        if (resultClass != null && !Map.class.isAssignableFrom(resultClass)) {
            MetaClass metaResultClass = MetaClass.forClass(resultClass);
            Class resultType = null;
            if (metaResultClass.hasGetter(propertyName)) {
                resultType = metaResultClass.getGetterType(propertyName);
            } else if (metaResultClass.hasSetter(propertyName)) {
                resultType = metaResultClass.getSetterType(propertyName);
            }
            if (resultType != null) {
                typeHandler = config.getTypeHandlerRegistry().getTypeHandler(resultType);
            }
        } else {
            typeHandler = config.getTypeHandlerRegistry().getUnknownTypeHandler();
        }
    }

    List<ResultMapping> composites = parseCompositeColumnName(columnName);
    if (composites.size() > 0) {
        ResultMapping first = composites.get(0);
        columnName = first.getColumn();
    }

    ResultMapping.Builder resultMappingBuilder = new ResultMapping.Builder(config, propertyName, columnName,
            typeHandler);
    resultMappingBuilder.javaType(javaClass);
    resultMappingBuilder.nestedQueryId(statementName);
    resultMappingBuilder.nestedResultMapId(resultMapName);
    resultMappingBuilder.jdbcType(jdbcTypeEnum);
    resultMappingBuilder.composites(composites);
    if (groupByProperties != null && groupByProperties.contains(propertyName)) {
        List<ResultFlag> flags = new ArrayList<ResultFlag>();
        resultMappingBuilder.flags(flags);
    }
    resultMappingList.add(resultMappingBuilder.build());
}

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