org.hibernate.engine: public class: IdentifierValue

org.hibernate.engine
public class: IdentifierValue [javadoc | source]

java.lang.Object
   org.hibernate.engine.IdentifierValue

A strategy for determining if an identifier value is an identifier of a new transient instance or a previously persistent transient instance. The strategy is determined by the unsaved-value attribute in the mapping file.

author: Gavin - King

Field Summary
public static final IdentifierValue	ANY	Always assume the transient instance is newly instantiated
public static final IdentifierValue	NONE	Never assume the transient instance is newly instantiated
public static final IdentifierValue	NULL	Assume the transient instance is newly instantiated if the identifier is null.
public static final IdentifierValue	UNDEFINED	Assume nothing.

Constructor:

Constructor:
protected IdentifierValue() { this.value = null; }
public IdentifierValue(Serializable value) { this.value = value; } Assume the transient instance is newly instantiated if its identifier is null or equal to `value`

 protected IdentifierValue() {
		this.value = null;
}

 public IdentifierValue(Serializable value) {
		this.value = value;
}

value

Method from org.hibernate.engine.IdentifierValue Summary:
getDefaultValue, isUnsaved, toString

Methods from java.lang.Object:
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method from org.hibernate.engine.IdentifierValue Detail:
public Serializable getDefaultValue(Serializable currentValue) { return value; }
public Boolean isUnsaved(Serializable id) { if ( log.isTraceEnabled() ) log.trace("id unsaved-value: " + value); return id==null \|\| id.equals(value) ? Boolean.TRUE : Boolean.FALSE; } Does the given identifier belong to a new instance?
public String toString() { return "identifier unsaved-value: " + value; }

Method from org.hibernate.engine.IdentifierValue Detail:

 public Serializable getDefaultValue(Serializable currentValue) {
		return value;
}

 public Boolean isUnsaved(Serializable id) {
		if ( log.isTraceEnabled() ) log.trace("id unsaved-value: " + value);
		return id==null || id.equals(value) ? Boolean.TRUE : Boolean.FALSE;
}

Does the given identifier belong to a new instance?

 public String toString() {
		return "identifier unsaved-value: " + value;
}