@InterfaceAudience.Public @InterfaceStability.Unstable public abstract class NodeAttribute extends Object
Node Attribute is a kind of a label which represents one of the attribute/feature of a Node. Its different from node partition label as resource guarantees across the queues will not be maintained for these type of labels.
A given Node can be mapped with any kind of attribute, few examples are HAS_SSD=true, JAVA_VERSION=JDK1.8, OS_TYPE=WINDOWS.
Its not compulsory for all the attributes to have value, empty string is the
default value of the NodeAttributeType.STRING
Node Attribute Prefix is used as namespace to segregate the attributes.
| Modifier and Type | Field and Description |
|---|---|
static String |
PREFIX_CENTRALIZED |
static String |
PREFIX_DISTRIBUTED |
| Constructor and Description |
|---|
NodeAttribute() |
| Modifier and Type | Method and Description |
|---|---|
abstract NodeAttributeKey |
getAttributeKey() |
abstract NodeAttributeType |
getAttributeType() |
abstract String |
getAttributeValue() |
static NodeAttribute |
newInstance(String attributeName,
NodeAttributeType attributeType,
String attributeValue) |
static NodeAttribute |
newInstance(String attributePrefix,
String attributeName,
NodeAttributeType attributeType,
String attributeValue) |
abstract void |
setAttributeKey(NodeAttributeKey attributeKey) |
abstract void |
setAttributeType(NodeAttributeType attributeType) |
abstract void |
setAttributeValue(String attributeValue) |
public static final String PREFIX_DISTRIBUTED
public static final String PREFIX_CENTRALIZED
public static NodeAttribute newInstance(String attributeName, NodeAttributeType attributeType, String attributeValue)
public static NodeAttribute newInstance(String attributePrefix, String attributeName, NodeAttributeType attributeType, String attributeValue)
@InterfaceAudience.Public @InterfaceStability.Unstable public abstract NodeAttributeKey getAttributeKey()
@InterfaceAudience.Public @InterfaceStability.Unstable public abstract void setAttributeKey(NodeAttributeKey attributeKey)
@InterfaceAudience.Public @InterfaceStability.Unstable public abstract String getAttributeValue()
@InterfaceAudience.Public @InterfaceStability.Unstable public abstract void setAttributeValue(String attributeValue)
@InterfaceAudience.Public @InterfaceStability.Unstable public abstract NodeAttributeType getAttributeType()
@InterfaceAudience.Public @InterfaceStability.Unstable public abstract void setAttributeType(NodeAttributeType attributeType)
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