org.apache.pig.impl.plan.optimizer
Enum Rule.WalkerAlgo
java.lang.Object
java.lang.Enum<Rule.WalkerAlgo>
org.apache.pig.impl.plan.optimizer.Rule.WalkerAlgo
- All Implemented Interfaces:
- Serializable, Comparable<Rule.WalkerAlgo>
- Enclosing class:
- Rule<O extends Operator,P extends OperatorPlan<O>>
public static enum Rule.WalkerAlgo
- extends Enum<Rule.WalkerAlgo>
Method Summary |
static Rule.WalkerAlgo |
valueOf(String name)
Returns the enum constant of this type with the specified name. |
static Rule.WalkerAlgo[] |
values()
Returns an array containing the constants of this enum type, in
the order they are declared. |
DepthFirstWalker
public static final Rule.WalkerAlgo DepthFirstWalker
DependencyOrderWalker
public static final Rule.WalkerAlgo DependencyOrderWalker
values
public static Rule.WalkerAlgo[] 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 (Rule.WalkerAlgo c : Rule.WalkerAlgo.values())
System.out.println(c);
- Returns:
- an array containing the constants of this enum type, in
the order they are declared
valueOf
public static Rule.WalkerAlgo 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 name
NullPointerException
- if the argument is null
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