@API(value=MAINTAINED) public abstract class RecordQueryInJoinPlan extends Object implements RecordQueryPlanWithChild
IN
list.Modifier and Type | Field and Description |
---|---|
protected String |
bindingName |
protected List<ExpressionRef<? extends PlannerExpression>> |
children |
protected ExpressionRef<RecordQueryPlan> |
plan |
protected boolean |
sortReverse |
protected boolean |
sortValuesNeeded |
protected static Comparator<Object> |
VALUE_COMPARATOR |
Constructor and Description |
---|
RecordQueryInJoinPlan(RecordQueryPlan plan,
String bindingName,
boolean sortValuesNeeded,
boolean sortReverse) |
Modifier and Type | Method and Description |
---|---|
boolean |
equals(Object o) |
boolean |
equalsWithoutChildren(PlannerExpression otherExpression) |
<M extends Message> |
execute(FDBRecordStoreBase<M> store,
EvaluationContext context,
byte[] continuation,
ExecuteProperties executeProperties)
Execute this query plan.
|
RecordQueryPlan |
getChild() |
int |
getComplexity()
Returns an integer representing the "complexity" of the generated plan.
|
RecordQueryPlan |
getInner() |
Iterator<? extends ExpressionRef<? extends PlannerExpression>> |
getPlannerExpressionChildren()
Return an iterator of references to the children of this planner expression.
|
Set<String> |
getUsedIndexes()
Returns a set of names of the indexes used by this plan (and its sub-plans).
|
protected abstract List<Object> |
getValues(EvaluationContext context) |
boolean |
hasFullRecordScan()
Indicates whether this plan (or one of its components) must perform a scan over all records in the store directly
rather than going through a secondary index.
|
int |
hashCode() |
boolean |
hasIndexScan(String indexName)
Indicates whether this plan scans the given index.
|
boolean |
hasRecordScan()
Indicates whether this plan (or one of its components) scans at least a subset of the record range directly
rather than going through a secondary index.
|
boolean |
isReverse()
Indicates whether this plan will return values in "reverse" order from the
natural order of results of this plan.
|
boolean |
isSorted() |
int |
planHash()
Return a hash similar to
hashCode , but with the additional guarantee that is is stable across JVMs. |
protected List<Object> |
sortValues(List<Object> values) |
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait
getChildren, getRelationalChildCount
asNestedWith, asUnnestedWith, execute, execute, execute, getQueryPlanChildren
execute, execute, logPlanStructure
combineHashes, iterablePlanHash, objectPlanHash, objectsPlanHash, planHash, planHash, planHashUnordered, stringHashUnordered
fromRecordQuery
acceptPropertyVisitor, bindTo
protected static final Comparator<Object> VALUE_COMPARATOR
protected final ExpressionRef<RecordQueryPlan> plan
protected final List<ExpressionRef<? extends PlannerExpression>> children
protected final String bindingName
protected final boolean sortValuesNeeded
protected final boolean sortReverse
public RecordQueryInJoinPlan(RecordQueryPlan plan, String bindingName, boolean sortValuesNeeded, boolean sortReverse)
@Nonnull public <M extends Message> RecordCursor<FDBQueriedRecord<M>> execute(@Nonnull FDBRecordStoreBase<M> store, @Nonnull EvaluationContext context, @Nullable byte[] continuation, @Nonnull ExecuteProperties executeProperties)
RecordQueryPlan
execute
in interface RecordQueryPlan
M
- type used to represent stored recordsstore
- record store from which to fetch recordscontext
- evaluation context containing parameter bindingscontinuation
- continuation from a previous execution of this same planexecuteProperties
- limits on execution@Nonnull public RecordQueryPlan getInner()
@Nonnull public RecordQueryPlan getChild()
getChild
in interface RecordQueryPlanWithChild
public boolean isSorted()
public boolean hasRecordScan()
QueryPlan
hasRecordScan
in interface QueryPlan<FDBQueriedRecord<Message>>
true
if this plan (or one of its components) scans at least a subset of the records directlypublic boolean hasFullRecordScan()
QueryPlan
hasRecordScan
for the comparison between two methods.hasFullRecordScan
in interface QueryPlan<FDBQueriedRecord<Message>>
true
if this plan (or one of its components) must perform a scan over all records in the
store directlypublic boolean hasIndexScan(@Nonnull String indexName)
QueryPlan
hasIndexScan
in interface QueryPlan<FDBQueriedRecord<Message>>
indexName
- the name of the index to check fortrue
if this plan (or one of its children) scans the given index@Nonnull public Set<String> getUsedIndexes()
QueryPlan
getUsedIndexes
in interface QueryPlan<FDBQueriedRecord<Message>>
@Nonnull @API(value=EXPERIMENTAL) public Iterator<? extends ExpressionRef<? extends PlannerExpression>> getPlannerExpressionChildren()
PlannerExpression
Collections.emptyIterator()
is returned. The returned iterator should
be treated as an immutable object and may throw an exception if Iterator.remove()
is called.
The iterator must return its elements in a consistent order.getPlannerExpressionChildren
in interface PlannerExpression
public boolean isReverse()
QueryPlan
true
if the plan
returns elements in descending order and false
if the elements are
returned in ascending order.isReverse
in interface QueryPlan<FDBQueriedRecord<Message>>
true
if this plan returns elements in reverse order@API(value=EXPERIMENTAL) public boolean equalsWithoutChildren(@Nonnull PlannerExpression otherExpression)
equalsWithoutChildren
in interface PlannerExpression
public int planHash()
PlanHashable
hashCode
, but with the additional guarantee that is is stable across JVMs.planHash
in interface PlanHashable
@Nullable protected abstract List<Object> getValues(EvaluationContext context)
public int getComplexity()
QueryPlan
getComplexity
in interface QueryPlan<FDBQueriedRecord<Message>>