tk.mybatis.mapper.annotation.ColumnType Java Examples

The following examples show how to use tk.mybatis.mapper.annotation.ColumnType. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: DefaultEntityResolve.java    From Mapper with MIT License 4 votes vote down vote up 
/**
 * 处理字段
 *
 * @param entityTable
 * @param field
 * @param config
 * @param style
 */
protected void processField(EntityTable entityTable, EntityField field, Config config, Style style) {
    //排除字段
    if (field.isAnnotationPresent(Transient.class)) {
        return;
    }
    //Id
    EntityColumn entityColumn = new EntityColumn(entityTable);
    //是否使用 {xx, javaType=xxx}
    entityColumn.setUseJavaType(config.isUseJavaType());
    //记录 field 信息，方便后续扩展使用
    entityColumn.setEntityField(field);
    if (field.isAnnotationPresent(Id.class)) {
        entityColumn.setId(true);
    }
    //Column
    String columnName = null;
    if (field.isAnnotationPresent(Column.class)) {
        Column column = field.getAnnotation(Column.class);
        columnName = column.name();
        entityColumn.setUpdatable(column.updatable());
        entityColumn.setInsertable(column.insertable());
    }
    //ColumnType
    if (field.isAnnotationPresent(ColumnType.class)) {
        ColumnType columnType = field.getAnnotation(ColumnType.class);
        //是否为 blob 字段
        entityColumn.setBlob(columnType.isBlob());
        //column可以起到别名的作用
        if (StringUtil.isEmpty(columnName) && StringUtil.isNotEmpty(columnType.column())) {
            columnName = columnType.column();
        }
        if (columnType.jdbcType() != JdbcType.UNDEFINED) {
            entityColumn.setJdbcType(columnType.jdbcType());
        }
        if (columnType.typeHandler() != UnknownTypeHandler.class) {
            entityColumn.setTypeHandler(columnType.typeHandler());
        }
    }
    //列名
    if (StringUtil.isEmpty(columnName)) {
        columnName = StringUtil.convertByStyle(field.getName(), style);
    }
    //自动处理关键字
    if (StringUtil.isNotEmpty(config.getWrapKeyword()) && SqlReservedWords.containsWord(columnName)) {
        columnName = MessageFormat.format(config.getWrapKeyword(), columnName);
    }
    entityColumn.setProperty(field.getName());
    entityColumn.setColumn(columnName);
    entityColumn.setJavaType(field.getJavaType());
    if (field.getJavaType().isPrimitive()) {
        log.warn("通用 Mapper 警告信息: <[" + entityColumn + "]> 使用了基本类型，基本类型在动态 SQL 中由于存在默认值，因此任何时候都不等于 null，建议修改基本类型为对应的包装类型!");
    }
    //OrderBy
    processOrderBy(entityTable, field, entityColumn);
    //处理主键策略
    processKeyGenerator(entityTable, field, entityColumn);
    entityTable.getEntityClassColumns().add(entityColumn);
    if (entityColumn.isId()) {
        entityTable.getEntityClassPKColumns().add(entityColumn);
    }
}