daoImpl(daoImpl.java.jet) - Dao implement

Introduce

Generate the dao implement.

Related knowledge:

Task

• Configure

Model

• Model Structure

Tag

• java
  • java:package
  • java:class
• entity
• set
• get

Task And Model

• Model Group: shop
• Model: book

The model group of the current task is shop, 
which contain a Java entity model book, 
and the relation value of book is one;

More about the model structure of this demo, please click: Demo model structure 

There are 2 ways to select the model:

• Select Model Group(Such as shop): <entity> tag need select the relation. This way is used in template, which require multiple models, such as many-to-one, many-to-many.

• Select Model(Such as book)(This demo): <entity> tag no need to select the relation. This way is used in template, which require only one model. Of course, you can also select relation together.

• Template: daoImpl.java.jet

• Name: ${Class}DaoImpl

We have created the following properties for this model:
Class: A head uppercase property, 
       which can be used as the class name or a part that need head uppercase.
       It's value is "Book".
class: A lowercase property, 
       which can be used as a part that need lowercase.
       It's value is "book".
menu: The name of the menu bar, and it's value is "Book".

Generate file: ${Class}DaoImpl

• Ext: The extension is java

Initialization

• Entity tag set the new variable object to get the selected model.
• Set the variable Class as the class name, get it by object.property("Class").

package, import and class

• Use java:package tag to automatically get the current package path.
• Use java:class tag to get the class name. The class name is the file name of the task: the value of ${Class}DaoImpl is BookDaoImpl.
• Use get tag to get Class, and it's value is Book, used to splice Book, IBookDao these 2 classes.

Result

Implement method

Here is a template for some implementation methods

The implementation method uses Class for stitching. Because the project itself is reflective, So there's no part of the field operation for id, name, etc. if you don't use reflection, do it yourself Operate with for iterate over object.fields.

Result