TableInfo.java

 
package cn.com.iresearch.mvideotracker.db.table;

import cn.com.iresearch.mvideotracker.db.exception.DbException;
import cn.com.iresearch.mvideotracker.db.reflect.ClassUtils;
import cn.com.iresearch.mvideotracker.db.reflect.FieldUtils;

import java.lang.reflect.Field;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;


public class TableInfo {

	private String className;
	private String tableName;
	
	private Id id;
	
 	//public final HashMap<String, Property> propertyMap = new HashMap<String, Property>();
	public final LinkedHashMap<String, Property> propertyMap = new LinkedHashMap<String, Property>();
	public final HashMap<String, OneToMany> oneToManyMap = new HashMap<String, OneToMany>();
	public final HashMap<String, ManyToOne> manyToOneMap = new HashMap<String, ManyToOne>();
	
	private boolean checkDatabese; 
	
	private static final HashMap<String, TableInfo> tableInfoMap = new HashMap<String, TableInfo>();
	
	private TableInfo(){}
	
	@SuppressWarnings("unused")
	public static  TableInfo get(Class<?> clazz){
		if(clazz == null) 
			throw new DbException("table info get error,because the clazz is null");
		
		TableInfo tableInfo = tableInfoMap.get(clazz.getName());
		if( tableInfo == null ){
			tableInfo = new TableInfo();
			
			tableInfo.setTableName(ClassUtils.getTableName(clazz));
			tableInfo.setClassName(clazz.getName());
			
			Field idField = ClassUtils.getPrimaryKeyField(clazz);
			
			if(idField != null){
				Id id = new Id();
				id.setColumn(FieldUtils.getColumnByField(idField));
				id.setFieldName(idField.getName());
				id.setSet(FieldUtils.getFieldSetMethod(clazz, idField));
				id.setGet(FieldUtils.getFieldGetMethod(clazz, idField));
				id.setDataType(idField.getType());
				
				tableInfo.setId(id);
			}else{
				throw new DbException("the class["+clazz+"]'s idField is null");
			}
			
			List<Property> pList = ClassUtils.getPropertyList(clazz);
			if(pList!=null){
				for(Property p : pList){
					if(p!=null)
						tableInfo.propertyMap.put(p.getColumn(), p);
				}
			}
			
			List<ManyToOne> mList = ClassUtils.getManyToOneList(clazz);
			if(mList!=null){
				for(ManyToOne m : mList){
					if(m!=null)
						tableInfo.manyToOneMap.put(m.getColumn(), m);
				}
			}
			
			List<OneToMany> oList = ClassUtils.getOneToManyList(clazz);
			if(oList!=null){
				for(OneToMany o : oList){
					if(o!=null)
						tableInfo.oneToManyMap.put(o.getColumn(), o);
				}
			}
			
			
			tableInfoMap.put(clazz.getName(), tableInfo);
		}
		
		if(tableInfo == null ) 
			throw new DbException("the class["+clazz+"]'s table is null");
		
		return tableInfo;
	}
	
	
	public static TableInfo get(String className){
		try {
			return get(Class.forName(className));
		} catch (ClassNotFoundException e) {
			e.printStackTrace();
		}
		return null;
	}
	

	public String getClassName() {
		return className;
	}

	public void setClassName(String className) {
		this.className = className;
	}

	public String getTableName() {
		return tableName;
	}

	public void setTableName(String tableName) {
		this.tableName = tableName;
	}

	public Id getId() {
		return id;
	}

	public void setId(Id id) {
		this.id = id;
	}

	public boolean isCheckDatabese() {
		return checkDatabese;
	}

	public void setCheckDatabese(boolean checkDatabese) {
		this.checkDatabese = checkDatabese;
	}

	
	
}