Package jnr.constants
Class ConstantSet
- java.lang.Object
-
- java.util.AbstractCollection<E>
-
- java.util.AbstractSet<Constant>
-
- jnr.constants.ConstantSet
-
-
Nested Class Summary
Nested Classes Modifier and Type Class Description private class
ConstantSet.ConstantIterator
-
Field Summary
Fields Modifier and Type Field Description private static boolean
CAN_LOAD_RESOURCES
private java.util.Set<java.lang.Enum>
constants
private static java.util.concurrent.ConcurrentMap<java.lang.String,ConstantSet>
constantSets
private java.lang.Class<java.lang.Enum>
enumClass
private static java.lang.ClassLoader
LOADER
private static java.lang.Object
lock
private java.lang.Long
maxValue
private java.lang.Long
minValue
private java.util.Map<java.lang.String,Constant>
nameToConstant
private static java.lang.Throwable
RESOURCE_READ_ERROR
private java.util.Map<java.lang.Long,Constant>
valueToConstant
-
Constructor Summary
Constructors Modifier Constructor Description private
ConstantSet(java.lang.Class<java.lang.Enum> enumClass)
Creates a new instance of ConstantSet
-
Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
contains(java.lang.Object o)
Constant
getConstant(long value)
Gets the constant for a value.Constant
getConstant(java.lang.String name)
Gets the constant for a name.static ConstantSet
getConstantSet(java.lang.String name)
Gets a ConstantSetprivate static java.lang.Class<java.lang.Enum>
getEnumClass(java.lang.String name)
Gets theEnum
class for the constant name space.private java.lang.Long
getLongField(java.lang.String name, long defaultValue)
java.lang.String
getName(int value)
Gets the name of a platform constant value.long
getValue(java.lang.String name)
Gets the integer value of a platform constant.java.util.Iterator<Constant>
iterator()
private static ConstantSet
loadConstantSet(java.lang.String name)
static void
main(java.lang.String[] args)
long
maxValue()
Returns the maximum value in this ConstantSetlong
minValue()
Returns the minimum value in this ConstantSetint
size()
-
Methods inherited from class java.util.AbstractCollection
add, addAll, clear, containsAll, isEmpty, remove, retainAll, toArray, toArray, toString
-
-
-
-
Field Detail
-
nameToConstant
private final java.util.Map<java.lang.String,Constant> nameToConstant
-
valueToConstant
private final java.util.Map<java.lang.Long,Constant> valueToConstant
-
constants
private final java.util.Set<java.lang.Enum> constants
-
enumClass
private final java.lang.Class<java.lang.Enum> enumClass
-
minValue
private volatile java.lang.Long minValue
-
maxValue
private volatile java.lang.Long maxValue
-
constantSets
private static final java.util.concurrent.ConcurrentMap<java.lang.String,ConstantSet> constantSets
-
lock
private static final java.lang.Object lock
-
LOADER
private static final java.lang.ClassLoader LOADER
-
CAN_LOAD_RESOURCES
private static final boolean CAN_LOAD_RESOURCES
-
RESOURCE_READ_ERROR
private static volatile java.lang.Throwable RESOURCE_READ_ERROR
-
-
Method Detail
-
getConstantSet
public static ConstantSet getConstantSet(java.lang.String name)
Gets a ConstantSet- Parameters:
name
- The name of the constant set to get.- Returns:
- A ConstantSet.
-
loadConstantSet
private static ConstantSet loadConstantSet(java.lang.String name)
-
getEnumClass
private static final java.lang.Class<java.lang.Enum> getEnumClass(java.lang.String name)
Gets theEnum
class for the constant name space.- Parameters:
name
- The name of the constants to locate.- Returns:
- A Class.
-
getConstant
public final Constant getConstant(java.lang.String name)
Gets the constant for a name.- Parameters:
name
- The name of the system constant (e.g. "EINVAL").- Returns:
- A
Constant
instance.
-
getConstant
public Constant getConstant(long value)
Gets the constant for a value.- Parameters:
value
- A system constant value.- Returns:
- A
Constant
instance.
-
getValue
public long getValue(java.lang.String name)
Gets the integer value of a platform constant.- Parameters:
name
- The name of the platform constant to look up (e.g. "EINVAL").- Returns:
- The integer value of the constant.
-
getName
public java.lang.String getName(int value)
Gets the name of a platform constant value.- Parameters:
value
- The integer value to look up.- Returns:
- The name of the constant.
-
getLongField
private java.lang.Long getLongField(java.lang.String name, long defaultValue)
-
minValue
public long minValue()
Returns the minimum value in this ConstantSet- Returns:
- a long value
-
maxValue
public long maxValue()
Returns the maximum value in this ConstantSet- Returns:
- a long value
-
iterator
public java.util.Iterator<Constant> iterator()
-
size
public int size()
-
contains
public boolean contains(java.lang.Object o)
-
main
public static void main(java.lang.String[] args)
-
-