org.hibernate.engine: public class: VersionValue

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

java.lang.Object
   org.hibernate.engine.VersionValue

A strategy for determining if a version value is an version 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 VersionValue	NULL	Assume the transient instance is newly instantiated if the version is null, otherwise assume it is a detached instance.
public static final VersionValue	UNDEFINED	Assume the transient instance is newly instantiated if the version is null, otherwise defer to the identifier unsaved-value.
public static final VersionValue	NEGATIVE	Assume the transient instance is newly instantiated if the version is negative, otherwise assume it is a detached instance.

Constructor:

Constructor:
protected VersionValue() { this.value = null; }
public VersionValue(Object value) { this.value = value; } Assume the transient instance is newly instantiated if its version is null or equal to `value` Parameters: `value` - value to compare to

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

 public VersionValue(Object value) {
		this.value = value;
}

value

Parameters:

value - value to compare to

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

Method from org.hibernate.engine.VersionValue Detail:

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

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

Does the given version belong to a new instance?

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