?? baseentity.java
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package org.springframework.samples.petclinic;
/**
* Simple JavaBean domain object with an id property.
* Used as a base class for objects needing this property.
*
* @author Ken Krebs
* @author Juergen Hoeller
*/
public class BaseEntity {
private Integer id;
public void setId(Integer id) {
this.id = id;
}
public Integer getId() {
return id;
}
public boolean isNew() {
return (this.id == null);
}
}
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