Package org.eclipse.emf.compare.utils
Enum UseIdentifiers
- java.lang.Object
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- java.lang.Enum<UseIdentifiers>
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- org.eclipse.emf.compare.utils.UseIdentifiers
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- All Implemented Interfaces:
Serializable
,Comparable<UseIdentifiers>
public enum UseIdentifiers extends Enum<UseIdentifiers>
This can be used to tell EMF Compare which strategy should be used when matching the EObjects as regards the identifier.- ONLY tells EMF Compare to match elements through their ID only. Any element that does not have any identifier will remain unmatched.
- WHEN_AVAILABLE tells EMF Compare to match elements through their IDs whenever possible, but fall back to a proximity algorithm for other elements.
- NEVER tells EMF Compare to ignore identifiers altogether.
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Enum Constant Summary
Enum Constants Enum Constant Description NEVER
Never use IDs, always use the content matching strategy.ONLY
Only use id, do not fall back on content based matching if no id is found.WHEN_AVAILABLE
Use ID when available on an element, if not available use the content matching strategy.
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static UseIdentifiers
valueOf(String name)
Returns the enum constant of this type with the specified name.static UseIdentifiers[]
values()
Returns an array containing the constants of this enum type, in the order they are declared.
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Enum Constant Detail
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ONLY
public static final UseIdentifiers ONLY
Only use id, do not fall back on content based matching if no id is found. This means any element not having an ID will not be matched.
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WHEN_AVAILABLE
public static final UseIdentifiers WHEN_AVAILABLE
Use ID when available on an element, if not available use the content matching strategy.
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NEVER
public static final UseIdentifiers NEVER
Never use IDs, always use the content matching strategy. That's useful for instance when you want to compare two results of a transformation which have arbitrary IDs.
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Method Detail
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values
public static UseIdentifiers[] values()
Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:for (UseIdentifiers c : UseIdentifiers.values()) System.out.println(c);
- Returns:
- an array containing the constants of this enum type, in the order they are declared
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valueOf
public static UseIdentifiers valueOf(String name)
Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)- Parameters:
name
- the name of the enum constant to be returned.- Returns:
- the enum constant with the specified name
- Throws:
IllegalArgumentException
- if this enum type has no constant with the specified nameNullPointerException
- if the argument is null
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