Package org.apache.druid.server.lookup.cache

Class LookupLoadingSpec

java.lang.Object

org.apache.druid.server.lookup.cache.LookupLoadingSpec

public class LookupLoadingSpec
extends Object

This class defines the spec for loading of lookups for a given task. It contains 2 fields:

1. mode: This mode defines whether lookups need to be loaded for the given task, or not. It can take 3 values:
• ALL: Load all the lookups.
• NONE: Load no lookups.
• ONLY_REQUIRED: Load only the lookups defined in lookupsToLoad
2. lookupsToLoad: Defines the lookups to load when the lookupLoadingMode is set to ONLY_REQUIRED.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	LookupLoadingSpec.Mode

Field Summary

Fields

Modifier and Type	Field	Description
static final LookupLoadingSpec	ALL
static final String	CTX_LOOKUP_LOADING_MODE
static final String	CTX_LOOKUPS_TO_LOAD
static final LookupLoadingSpec	NONE

Method Summary

Modifier and Type	Method	Description
static LookupLoadingSpec	createFromContext(Map<String,Object> context, LookupLoadingSpec defaultSpec)
boolean	equals(Object o)
com.google.common.collect.ImmutableSet<String>	getLookupsToLoad()
LookupLoadingSpec.Mode	getMode()
int	hashCode()
static LookupLoadingSpec	loadOnly(Set<String> lookupsToLoad)	Creates a LookupLoadingSpec which loads only the lookups present in the given set.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

CTX_LOOKUP_LOADING_MODE

public static final String CTX_LOOKUP_LOADING_MODE

See Also:

• Constant Field Values

CTX_LOOKUPS_TO_LOAD

public static final String CTX_LOOKUPS_TO_LOAD

See Also:

• Constant Field Values

ALL

public static final LookupLoadingSpec ALL

NONE

public static final LookupLoadingSpec NONE

Method Details

loadOnly

public static LookupLoadingSpec loadOnly(Set<String> lookupsToLoad)

Creates a LookupLoadingSpec which loads only the lookups present in the given set.

getMode

public LookupLoadingSpec.Mode getMode()

getLookupsToLoad

public com.google.common.collect.ImmutableSet<String> getLookupsToLoad()

Returns:

A non-null immutable set of lookup names when mode is ONLY_REQUIRED, null otherwise.

createFromContext

public static LookupLoadingSpec createFromContext(Map<String,Object> context,
 LookupLoadingSpec defaultSpec)

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object