1.hql条件查询:Object,hbm

package com.bjpowernode.hibernate;

import java.util.Set;

public class Classes {

private int id;

private String name;

private Set students;

public int getId() {
return id;
}

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

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public Set getStudents() {
return students;
}

public void setStudents(Set students) {
this.students = students;
}

}

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
<class name="com.bjpowernode.hibernate.Classes" table="t_classes">
<id name="id">
<generator class="native"/>
</id>
<property name="name"/>
<set name="students" inverse="true">
<!--
<key column="classesid" not-null="true"/>
-->
<key column="classesid"/>
<one-to-many class="com.bjpowernode.hibernate.Student"/>
</set>
</class>
</hibernate-mapping>

package com.bjpowernode.hibernate;

import java.util.Date;

public class Student {

private int id;

private String name;

private Date createTime;

private Classes classes;

public Student() {
}

public Student(int id, String name) {
this.id = id;
this.name = name;
}

public int getId() {
return id;
}

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

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public Classes getClasses() {
return classes;
}

public void setClasses(Classes classes) {
this.classes = classes;
}

public Date getCreateTime() {
return createTime;
}

public void setCreateTime(Date createTime) {
this.createTime = createTime;
}
}

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
<class name="com.bjpowernode.hibernate.Student" table="t_student">
<id name="id">
<generator class="native"/>
</id>
<property name="name"/>
<property name="createTime"/>
<many-to-one name="classes" column="classesid"/>
<filter name="testFilter" condition="id < :myid"></filter>
</class>

<query name="queryStudent">
<![CDATA[
select s from Student s where s.id <?
]]>
</query>

<filter-def name="testFilter">
<filter-param type="integer" name="myid"/>
</filter-def>
</hibernate-mapping>