import org.apache.ibatis.scripting.xmltags.IfSqlNode; //导入依赖的package包/类
private SqlNode getInsertFileds() {
	List<SqlNode> contents = new ArrayList<SqlNode>();
	for(Field field : columnFields){
		List<SqlNode> sqlNodes = new ArrayList<SqlNode>();

		if(Date.class.isAssignableFrom(field.getType()) 
				&& field.getAnnotation(Column.class) != null 
				&& field.getAnnotation(Column.class).sysdate() == true){
			sqlNodes.add(new TextSqlNode("now(),"));
		} else {
			sqlNodes.add(new TextSqlNode("#{" + field.getName() + "},"));
		}
		
		contents.add(new IfSqlNode(new MixedSqlNode(sqlNodes), getTestByField(field)));
	}
	
	return new TrimSqlNode(configuration, new MixedSqlNode(contents), " VALUES (", null, ")", ",");
}
 

import org.apache.ibatis.scripting.xmltags.IfSqlNode; //导入依赖的package包/类
private SqlNode getUpdateColumns(){
	List<SqlNode> contents = new ArrayList<SqlNode>();
	for(Field field : columnFields){
		List<SqlNode> sqlNodes = new ArrayList<SqlNode>();
		
		if(Date.class.isAssignableFrom(field.getType()) 
				&& field.getAnnotation(Column.class) != null 
				&& field.getAnnotation(Column.class).sysdate() == true){
			sqlNodes.add(new TextSqlNode(getColumnNameByField(field) + " = now(),"));
		} else {
			sqlNodes.add(new TextSqlNode(getColumnNameByField(field) + " = #{" + field.getName() + "},"));
		}
		
		contents.add(new IfSqlNode(new MixedSqlNode(sqlNodes), getTestByField(field)));
	}
	
	return new SetSqlNode(configuration, new MixedSqlNode(contents));
}
 

import org.apache.ibatis.scripting.xmltags.IfSqlNode; //导入依赖的package包/类
@Test
public void shouldConditionallyIncludeWhere() throws Exception {
  final String expected = "SELECT * FROM BLOG WHERE ID = ?";
  DynamicSqlSource source = createDynamicSqlSource(
      new TextSqlNode("SELECT * FROM BLOG"),
      new IfSqlNode(mixedContents(new TextSqlNode("WHERE ID = ?")), "true"
      ));
  BoundSql boundSql = source.getBoundSql(null);
  assertEquals(expected, boundSql.getSql());
}
 

import org.apache.ibatis.scripting.xmltags.IfSqlNode; //导入依赖的package包/类
@Test
public void shouldConditionallyExcludeWhere() throws Exception {
  final String expected = "SELECT * FROM BLOG";
  DynamicSqlSource source = createDynamicSqlSource(
      new TextSqlNode("SELECT * FROM BLOG"),
      new IfSqlNode(mixedContents(new TextSqlNode("WHERE ID = ?")), "false"
      ));
  BoundSql boundSql = source.getBoundSql(null);
  assertEquals(expected, boundSql.getSql());
}
 

import org.apache.ibatis.scripting.xmltags.IfSqlNode; //导入依赖的package包/类
@Test
public void shouldConditionallyDefault() throws Exception {
  final String expected = "SELECT * FROM BLOG WHERE CATEGORY = 'DEFAULT'";
  DynamicSqlSource source = createDynamicSqlSource(
      new TextSqlNode("SELECT * FROM BLOG"),
      new ChooseSqlNode(new ArrayList<SqlNode>() {{
        add(new IfSqlNode(mixedContents(new TextSqlNode("WHERE CATEGORY = ?")), "false"
        ));
        add(new IfSqlNode(mixedContents(new TextSqlNode("WHERE CATEGORY = 'NONE'")), "false"
        ));
      }}, mixedContents(new TextSqlNode("WHERE CATEGORY = 'DEFAULT'"))));
  BoundSql boundSql = source.getBoundSql(null);
  assertEquals(expected, boundSql.getSql());
}
 

import org.apache.ibatis.scripting.xmltags.IfSqlNode; //导入依赖的package包/类
@Test
public void shouldConditionallyChooseFirst() throws Exception {
  final String expected = "SELECT * FROM BLOG WHERE CATEGORY = ?";
  DynamicSqlSource source = createDynamicSqlSource(
      new TextSqlNode("SELECT * FROM BLOG"),
      new ChooseSqlNode(new ArrayList<SqlNode>() {{
        add(new IfSqlNode(mixedContents(new TextSqlNode("WHERE CATEGORY = ?")), "true"
        ));
        add(new IfSqlNode(mixedContents(new TextSqlNode("WHERE CATEGORY = 'NONE'")), "false"
        ));
      }}, mixedContents(new TextSqlNode("WHERE CATEGORY = 'DEFAULT'"))));
  BoundSql boundSql = source.getBoundSql(null);
  assertEquals(expected, boundSql.getSql());
}
 

import org.apache.ibatis.scripting.xmltags.IfSqlNode; //导入依赖的package包/类
@Test
public void shouldConditionallyChooseSecond() throws Exception {
  final String expected = "SELECT * FROM BLOG WHERE CATEGORY = 'NONE'";
  DynamicSqlSource source = createDynamicSqlSource(
      new TextSqlNode("SELECT * FROM BLOG"),
      new ChooseSqlNode(new ArrayList<SqlNode>() {{
        add(new IfSqlNode(mixedContents(new TextSqlNode("WHERE CATEGORY = ?")), "false"
        ));
        add(new IfSqlNode(mixedContents(new TextSqlNode("WHERE CATEGORY = 'NONE'")), "true"
        ));
      }}, mixedContents(new TextSqlNode("WHERE CATEGORY = 'DEFAULT'"))));
  BoundSql boundSql = source.getBoundSql(null);
  assertEquals(expected, boundSql.getSql());
}
 

import org.apache.ibatis.scripting.xmltags.IfSqlNode; //导入依赖的package包/类
@Test
public void shouldTrimWHEREInsteadOfANDForFirstCondition() throws Exception {
  final String expected = "SELECT * FROM BLOG WHERE  ID = ?";
  DynamicSqlSource source = createDynamicSqlSource(
      new TextSqlNode("SELECT * FROM BLOG"),
      new WhereSqlNode(new Configuration(),mixedContents(
          new IfSqlNode(mixedContents(new TextSqlNode("   and ID = ?  ")), "true"
          ),
          new IfSqlNode(mixedContents(new TextSqlNode("   or NAME = ?  ")), "false"
          )
      )));
  BoundSql boundSql = source.getBoundSql(null);
  assertEquals(expected, boundSql.getSql());
}
 

import org.apache.ibatis.scripting.xmltags.IfSqlNode; //导入依赖的package包/类
@Test
public void shouldTrimWHEREANDWithLFForFirstCondition() throws Exception {
  final String expected = "SELECT * FROM BLOG WHERE \n ID = ?";
  DynamicSqlSource source = createDynamicSqlSource(
      new TextSqlNode("SELECT * FROM BLOG"),
      new WhereSqlNode(new Configuration(),mixedContents(
          new IfSqlNode(mixedContents(new TextSqlNode("   and\n ID = ?  ")), "true"
              )
          )));
  BoundSql boundSql = source.getBoundSql(null);
  assertEquals(expected, boundSql.getSql());
}
 

import org.apache.ibatis.scripting.xmltags.IfSqlNode; //导入依赖的package包/类
@Test
public void shouldTrimWHEREANDWithCRLFForFirstCondition() throws Exception {
  final String expected = "SELECT * FROM BLOG WHERE \r\n ID = ?";
  DynamicSqlSource source = createDynamicSqlSource(
      new TextSqlNode("SELECT * FROM BLOG"),
      new WhereSqlNode(new Configuration(),mixedContents(
          new IfSqlNode(mixedContents(new TextSqlNode("   and\r\n ID = ?  ")), "true"
              )
          )));
  BoundSql boundSql = source.getBoundSql(null);
  assertEquals(expected, boundSql.getSql());
}
 

import org.apache.ibatis.scripting.xmltags.IfSqlNode; //导入依赖的package包/类
@Test
public void shouldTrimWHEREANDWithTABForFirstCondition() throws Exception {
  final String expected = "SELECT * FROM BLOG WHERE \t ID = ?";
  DynamicSqlSource source = createDynamicSqlSource(
      new TextSqlNode("SELECT * FROM BLOG"),
      new WhereSqlNode(new Configuration(),mixedContents(
          new IfSqlNode(mixedContents(new TextSqlNode("   and\t ID = ?  ")), "true"
              )
          )));
  BoundSql boundSql = source.getBoundSql(null);
  assertEquals(expected, boundSql.getSql());
}
 

import org.apache.ibatis.scripting.xmltags.IfSqlNode; //导入依赖的package包/类
@Test
public void shouldTrimWHEREORWithLFForFirstCondition() throws Exception {
  final String expected = "SELECT * FROM BLOG WHERE \n ID = ?";
  DynamicSqlSource source = createDynamicSqlSource(
      new TextSqlNode("SELECT * FROM BLOG"),
      new WhereSqlNode(new Configuration(),mixedContents(
          new IfSqlNode(mixedContents(new TextSqlNode("   or\n ID = ?  ")), "true"
              )
          )));
  BoundSql boundSql = source.getBoundSql(null);
  assertEquals(expected, boundSql.getSql());
}
 

import org.apache.ibatis.scripting.xmltags.IfSqlNode; //导入依赖的package包/类
@Test
public void shouldTrimWHEREORWithCRLFForFirstCondition() throws Exception {
  final String expected = "SELECT * FROM BLOG WHERE \r\n ID = ?";
  DynamicSqlSource source = createDynamicSqlSource(
      new TextSqlNode("SELECT * FROM BLOG"),
      new WhereSqlNode(new Configuration(),mixedContents(
          new IfSqlNode(mixedContents(new TextSqlNode("   or\r\n ID = ?  ")), "true"
              )
          )));
  BoundSql boundSql = source.getBoundSql(null);
  assertEquals(expected, boundSql.getSql());
}
 

import org.apache.ibatis.scripting.xmltags.IfSqlNode; //导入依赖的package包/类
@Test
public void shouldTrimWHEREORWithTABForFirstCondition() throws Exception {
  final String expected = "SELECT * FROM BLOG WHERE \t ID = ?";
  DynamicSqlSource source = createDynamicSqlSource(
      new TextSqlNode("SELECT * FROM BLOG"),
      new WhereSqlNode(new Configuration(),mixedContents(
          new IfSqlNode(mixedContents(new TextSqlNode("   or\t ID = ?  ")), "true"
              )
          )));
  BoundSql boundSql = source.getBoundSql(null);
  assertEquals(expected, boundSql.getSql());
}
 

import org.apache.ibatis.scripting.xmltags.IfSqlNode; //导入依赖的package包/类
@Test
public void shouldTrimWHEREInsteadOfORForSecondCondition() throws Exception {
  final String expected = "SELECT * FROM BLOG WHERE  NAME = ?";
  DynamicSqlSource source = createDynamicSqlSource(
      new TextSqlNode("SELECT * FROM BLOG"),
      new WhereSqlNode(new Configuration(),mixedContents(
          new IfSqlNode(mixedContents(new TextSqlNode("   and ID = ?  ")), "false"
          ),
          new IfSqlNode(mixedContents(new TextSqlNode("   or NAME = ?  ")), "true"
          )
      )));
  BoundSql boundSql = source.getBoundSql(null);
  assertEquals(expected, boundSql.getSql());
}
 

import org.apache.ibatis.scripting.xmltags.IfSqlNode; //导入依赖的package包/类
@Test
public void shouldTrimWHEREInsteadOfANDForBothConditions() throws Exception {
  final String expected = "SELECT * FROM BLOG WHERE  ID = ?   OR NAME = ?";
  DynamicSqlSource source = createDynamicSqlSource(
      new TextSqlNode("SELECT * FROM BLOG"),
      new WhereSqlNode(new Configuration(),mixedContents(
          new IfSqlNode(mixedContents(new TextSqlNode("   and ID = ?   ")), "true"
          ),
          new IfSqlNode(mixedContents(new TextSqlNode("OR NAME = ?  ")), "true"
          )
      )));
  BoundSql boundSql = source.getBoundSql(null);
  assertEquals(expected, boundSql.getSql());
}
 

import org.apache.ibatis.scripting.xmltags.IfSqlNode; //导入依赖的package包/类
@Test
public void shouldTrimNoWhereClause() throws Exception {
  final String expected = "SELECT * FROM BLOG";
  DynamicSqlSource source = createDynamicSqlSource(
      new TextSqlNode("SELECT * FROM BLOG"),
      new WhereSqlNode(new Configuration(),mixedContents(
          new IfSqlNode(mixedContents(new TextSqlNode("   and ID = ?   ")), "false"
          ),
          new IfSqlNode(mixedContents(new TextSqlNode("OR NAME = ?  ")), "false"
          )
      )));
  BoundSql boundSql = source.getBoundSql(null);
  assertEquals(expected, boundSql.getSql());
}
 

import org.apache.ibatis.scripting.xmltags.IfSqlNode; //导入依赖的package包/类
@Test
public void shouldTrimSETInsteadOfCOMMAForBothConditions() throws Exception {
  final String expected = "UPDATE BLOG SET ID = ?,  NAME = ?";
  DynamicSqlSource source = createDynamicSqlSource(
      new TextSqlNode("UPDATE BLOG"),
      new SetSqlNode(new Configuration(),mixedContents(
          new IfSqlNode(mixedContents(new TextSqlNode(" ID = ?, ")), "true"
          ),
          new IfSqlNode(mixedContents(new TextSqlNode(" NAME = ?, ")), "true"
          )
      )));
  BoundSql boundSql = source.getBoundSql(null);
  assertEquals(expected, boundSql.getSql());
}
 

import org.apache.ibatis.scripting.xmltags.IfSqlNode; //导入依赖的package包/类
@Test
public void shouldTrimNoSetClause() throws Exception {
  final String expected = "UPDATE BLOG";
  DynamicSqlSource source = createDynamicSqlSource(
      new TextSqlNode("UPDATE BLOG"),
      new SetSqlNode(new Configuration(),mixedContents(
          new IfSqlNode(mixedContents(new TextSqlNode("   , ID = ?   ")), "false"
          ),
          new IfSqlNode(mixedContents(new TextSqlNode(", NAME = ?  ")), "false"
          )
      )));
  BoundSql boundSql = source.getBoundSql(null);
  assertEquals(expected, boundSql.getSql());
}