#Java - Code Snippets for '#Hibernate'

#Java - Code Snippets for '#Hibernate' - 4 code snippet(s) found

Sample 1. Lazy Initialization using Hibernate

@Entity

@Table(name = "EMPLOYEE")

public class Employee {

   @ManyToOne(fetch = FetchType.LAZY)

   private Set<Department> dept = new Department();

}

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Sample 2. Hibernate Entity

import javax.persistence.Column;

import javax.persistence.Entity;

import javax.persistence.GeneratedValue;

import javax.persistence.GenerationType;

import javax.persistence.SequenceGenerator;

import javax.persistence.Table;

import javax.validation.constraints.NotNull;



import org.hibernate.annotations.Type;



import javax.persistence.DiscriminatorColumn;

import javax.persistence.DiscriminatorType;

import javax.persistence.DiscriminatorValue;

import org.hibernate.annotations.DiscriminatorOptions;

import javax.persistence.Inheritance;

import javax.persistence.InheritanceType;





@Entity

@Table(name="Employee", schema = "test")

@Inheritance(strategy= InheritanceType.SINGLE_TABLE)

@DiscriminatorColumn(

  name="ACTIVE",

  discriminatorType= DiscriminatorType.STRING

)

@DiscriminatorOptions(insert=true)

@DiscriminatorValue("Yes")

public class Employee {



  @javax.persistence.Id

  @SequenceGenerator(name = "", sequenceName = "")

  @GeneratedValue(strategy = GenerationType.AUTO, generator = "")

  @Column(name="EMPLOYEE_ID")

  private int employeeId;



  @Column(name="EMPLOYEE_NAME")

  @NotNull

  private String employeeName;



  @Column(name="DEPT")

  @NotNull

  private String department;



  @Column(name="FULL_TIME")

  @Type(type="yes_no")

  @NotNull

  private Boolean isFullTime;



  @Column(name = "ACTIVE")

  @Type(type = "yes_no")

  public boolean getActive() {

    return active;

  }

   

  public String getName() {

    return employeeName;

  }



  public String getDept() {

    return department;

  }

}

_{Like Feedback Hibernate entity Hibernate Bean}

Sample 3. Cache Hibernate Entities using EHCache

// net.sf.ehcache.Cache.Cache(String name, int maxElementsInMemory, MemoryStoreEvictionPolicy 

 memoryStoreEvictionPolicy, boolean overflowToDisk, String diskStorePath, boolean eternal, long 

 timeToLiveSeconds, long timeToIdleSeconds, boolean diskPersistent, long 

 diskExpiryThreadIntervalSeconds, RegisteredEventListeners registeredEventListeners)



Ehcache employeeCache = new Cache("Employee", 1000, MemoryStoreEvictionPolicy.FIFO, false, "c:/EmployeeDiskCacheStorage", false, 300,

        300, false, 30, null);



employeeCache = new SelfPopulatingCache(employeeCache, new CacheEntryFactory() {

   @Override

   public Object createEntry(Object day) throws Exception {

      Employee employee = getEmployee(1234);

           return employee;

   }

});



CacheManager.getInstance().addCache(employeeCache);

_{Like Feedback EHCache cache hibernate entities CacheManager CacheEntryFactory SelfPopulatingCache MemoryStoreEvictionPolicy net.sf.ehcache.Cache}

Sample 4. Hibernate - Mapping the Id to RowId of Table ( workaround for Table having no primary key )

@Id

@Column(name="ROWID")

private String id;

_{Like Feedback Hibernate workaround for Table having no primary key mapping Id to RowId}

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