Example usage for org.apache.ibatis.reflection MetaClass hasGetter

Introduction

In this page you can find the example usage for org.apache.ibatis.reflection MetaClass hasGetter.

Prototype

public boolean hasGetter(String name) 

Source Link

Usage

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.");
    }// ww  w  . j  a  v  a  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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From source file:com.ibatis.sqlmap.engine.builder.XmlSqlMapParser.java

License:Apache License

@NodeEvent("/sqlMap/parameterMap/parameter")
public void sqlMapparameterMapparameter(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 w  w .  j  a  va  2 s .  c  om

    String propertyName = context.getStringAttribute("property");
    String jdbcType = context.getStringAttribute("jdbcType");
    String javaType = context.getStringAttribute("javaType");
    String resultMap = context.getStringAttribute("resultMap");
    String mode = context.getStringAttribute("mode");
    String callback = context.getStringAttribute("typeHandler");
    String numericScaleProp = context.getStringAttribute("numericScale");

    Class javaClass = null;
    try {
        if (javaType != null && javaType.length() > 0) {
            javaClass = config.getTypeAliasRegistry().resolveAlias(javaType);
        }
    } catch (Exception e) {
        throw new RuntimeException("Error setting javaType on parameter 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);
    }
    if (callback != null) {
        Object o = config.getTypeAliasRegistry().resolveAlias(callback).newInstance();
        if (o instanceof TypeHandlerCallback) {
            typeHandler = new TypeHandlerCallbackAdapter((TypeHandlerCallback) o);
        }
    }
    if (typeHandler == null && config.getTypeHandlerRegistry().hasTypeHandler(parameterMapBuilder.type())) {
        typeHandler = config.getTypeHandlerRegistry().getTypeHandler(parameterMapBuilder.type());
    }
    if (typeHandler == null) {
        Class parameterClass = parameterMapBuilder.type();
        if (parameterClass != null && !Map.class.isAssignableFrom(parameterClass)) {
            MetaClass metaParamClass = MetaClass.forClass(parameterClass);
            Class paramType = null;
            if (metaParamClass.hasGetter(propertyName)) {
                paramType = metaParamClass.getGetterType(propertyName);
            } else if (metaParamClass.hasSetter(propertyName)) {
                paramType = metaParamClass.getSetterType(propertyName);
            }
            if (paramType != null) {
                typeHandler = config.getTypeHandlerRegistry().getTypeHandler(paramType);
            }
        } else {
            typeHandler = config.getTypeHandlerRegistry().getUnknownTypeHandler();
        }
    }

    ParameterMode paramModeEnum = ParameterMode.IN;
    if (mode != null) {
        paramModeEnum = ParameterMode.valueOf(mode);
    }

    Integer numericScale = null;
    if (numericScaleProp != null) {
        numericScale = new Integer(numericScaleProp);
    }

    ParameterMapping.Builder parameterMappingBuilder = new ParameterMapping.Builder(config, propertyName,
            typeHandler);
    parameterMappingBuilder.javaType(javaClass);
    parameterMappingBuilder.jdbcType(jdbcTypeEnum);
    parameterMappingBuilder.mode(paramModeEnum);
    parameterMappingBuilder.numericScale(numericScale);
    parameterMappingBuilder.resultMapId(resultMap);

    parameterMappingList.add(parameterMappingBuilder.build());
}

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