src/com/hibernate/PlanEntity.java

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package com.hibernate;

import javax.persistence.CascadeType;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.Table;

@Entity
@Table(name="plan")
public class PlanEntity {
	@Id
	@GeneratedValue(strategy = GenerationType.AUTO)
	protected Long id;
	private String pname;
	private String pdate;
	private String btime;
	private String etime;
	private String contents;
	
	//@ManyToOne(fetch = FetchType.EAGER, cascade = { CascadeType.ALL }, optional = true)
	@ManyToOne(cascade={CascadeType.REFRESH,CascadeType.MERGE})
	@JoinColumn(name = "roomsid")
	private RoomsEntity roomsEntity;

	public Long getId() {
		return id;
	}

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

	public String getPname() {
		return pname;
	}

	public void setPname(String pname) {
		this.pname = pname;
	}

	public String getPdate() {
		return pdate;
	}

	public void setPdate(String pdate) {
		this.pdate = pdate;
	}

	public String getBtime() {
		return btime;
	}

	public void setBtime(String btime) {
		this.btime = btime;
	}