## org.apache.lucene.util
Enum RamUsageEstimator.JvmFeature

    java.lang.Object
      java.lang.Enum<RamUsageEstimator.JvmFeature>
          org.apache.lucene.util.RamUsageEstimator.JvmFeature

All Implemented Interfaces:
  Serializable, Comparable<RamUsageEstimator.JvmFeature>

Enclosing class:
  RamUsageEstimator

    public static enum RamUsageEstimator.JvmFeature

extends Enum<RamUsageEstimator.JvmFeature>

JVM diagnostic features.

Enum Constant Summary
`ARRAY_HEADER_SIZE`
`FIELD_OFFSETS`
`OBJECT_ALIGNMENT`
`OBJECT_REFERENCE_SIZE`

Field Summary
`String` `description`

Method Summary
`String` `toString()`
`static RamUsageEstimator.JvmFeature` `valueOf(String name)` Returns the enum constant of this type with the specified name.
`static RamUsageEstimator.JvmFeature[]` `values()` Returns an array containing the constants of this enum type, in the order they're declared.

Methods inherited from class java.lang.Enum
`clone, compareTo, equals, getDeclaringClass, hashCode, name, ordinal, valueOf`

Methods inherited from class java.lang.Object
`finalize, getClass, notify, notifyAll, wait, wait, wait`

Enum Constant Detail

### OBJECT_REFERENCE_SIZE

    public static final RamUsageEstimator.JvmFeature OBJECT_REFERENCE_SIZE

### ARRAY_HEADER_SIZE

    public static final RamUsageEstimator.JvmFeature ARRAY_HEADER_SIZE

### FIELD_OFFSETS

    public static final RamUsageEstimator.JvmFeature FIELD_OFFSETS

### OBJECT_ALIGNMENT

    public static final RamUsageEstimator.JvmFeature OBJECT_ALIGNMENT

Field Detail

### description

    public final String description

Method Detail

### values

    public static final RamUsageEstimator.JvmFeature[] values()

  Returns an array containing the constants of this enum type, in the order they're declared. This method may be used to iterate over the constants as follows:

      for(RamUsageEstimator.JvmFeature c : RamUsageEstimator.JvmFeature.values())
              System.out.println(c);

  Returns:
    an array containing the constants of this enum type, in the order they're declared

### valueOf

    public static RamUsageEstimator.JvmFeature 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

### toString

    public String toString()

  Overrides:
    `toString` in class `Enum<RamUsageEstimator.JvmFeature>`