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public interface QueryMetadata
Provides a common interface for accessing query metadata.
| Field Summary | |
|---|---|
static String |
CACHE_GROUPS_PROPERTY
|
static String |
CACHE_STRATEGY_PROPERTY
|
static int |
FETCH_LIMIT_DEFAULT
Defines default query fetch limit, which is zero, meaning that all matching rows should be fetched. |
static String |
FETCH_LIMIT_PROPERTY
Defines the name of the property for the query fetch limit
. |
static int |
FETCH_OFFSET_DEFAULT
Defines default query fetch start index, which is 0, meaning that matching rows selected starting from the first. |
static String |
FETCH_OFFSET_PROPERTY
Defines the name of the property for the query fetch
offset. |
static boolean |
FETCHING_DATA_ROWS_DEFAULT
|
static String |
FETCHING_DATA_ROWS_PROPERTY
|
static int |
PAGE_SIZE_DEFAULT
Defines default query page size, which is zero for no pagination. |
static String |
PAGE_SIZE_PROPERTY
Defines the name of the property for the query page size. |
static int |
STATEMENT_FETCH_SIZE_DEFAULT
Defines default query fetch start index, which is 0, meaning that matching rows selected starting from the first. |
static String |
STATEMENT_FETCH_SIZE_PROPERTY
Defines the name of the property for the query fetch
size. |
| Method Summary | |
|---|---|
String[] |
getCacheGroups()
Returns an optional array of cache "groups". |
String |
getCacheKey()
Returns a String that uniquely identifies this query for the purposes of result caching. |
QueryCacheStrategy |
getCacheStrategy()
Returns a caching strategy for this query. |
ClassDescriptor |
getClassDescriptor()
|
DataMap |
getDataMap()
Returns a DataMap associated with a query or null if no such DataMap exists. |
DbEntity |
getDbEntity()
Returns a DbEntity associated with a query or null if no such entity exists. |
int |
getFetchLimit()
Returns the limit on the maximum number of records that can be returned by this query. |
int |
getFetchOffset()
Specifies a start of a range when fetching a subset of records. |
ObjEntity |
getObjEntity()
Returns an ObjEntity associated with a query or null if no such entity exists. |
Query |
getOrginatingQuery()
Returns a query that originated this query. |
int |
getPageSize()
Returns query page size. |
Map<String,String> |
getPathSplitAliases()
Returns a map of aliases vs. |
PrefetchTreeNode |
getPrefetchTree()
Returns a root node of prefetch tree used by this query, or null of no prefetches are configured. |
Procedure |
getProcedure()
Returns a Procedure associated with a query or null if no such procedure exists. |
List<Object> |
getResultSetMapping()
Returns an optional list of result set mapping hints. |
int |
getStatementFetchSize()
|
boolean |
isFetchingDataRows()
Returns true if this query should produce a list of data rows as
opposed to DataObjects, false for DataObjects. |
boolean |
isRefreshingObjects()
Returns true if the query results should replace any currently cached
values, returns false otherwise. |
| Field Detail |
|---|
static final String FETCH_LIMIT_PROPERTY
fetch limit
.
static final int FETCH_LIMIT_DEFAULT
static final String FETCH_OFFSET_PROPERTY
fetch
offset.
static final int FETCH_OFFSET_DEFAULT
static final String PAGE_SIZE_PROPERTY
page size.
static final int PAGE_SIZE_DEFAULT
static final String FETCHING_DATA_ROWS_PROPERTY
static final boolean FETCHING_DATA_ROWS_DEFAULT
static final String CACHE_STRATEGY_PROPERTY
static final String CACHE_GROUPS_PROPERTY
static final String STATEMENT_FETCH_SIZE_PROPERTY
fetch
size.
static final int STATEMENT_FETCH_SIZE_DEFAULT
| Method Detail |
|---|
ClassDescriptor getClassDescriptor()
ObjEntity getObjEntity()
DbEntity getDbEntity()
Procedure getProcedure()
DataMap getDataMap()
QueryCacheStrategy getCacheStrategy()
String getCacheKey()
String[] getCacheGroups()
boolean isFetchingDataRows()
true if this query should produce a list of data rows as
opposed to DataObjects, false for DataObjects. This is a hint to
QueryEngine executing this query.
boolean isRefreshingObjects()
true if the query results should replace any currently cached
values, returns false otherwise. If isFetchingDataRows()
returns true, this setting is not applicable and has no effect.
int getPageSize()
int getFetchOffset()
int getFetchLimit()
Query getOrginatingQuery()
PrefetchTreeNode getPrefetchTree()
Map<String,String> getPathSplitAliases()
List<Object> getResultSetMapping()
EntityResultSegment or ScalarResultSegment. The returned
list can be null.
int getStatementFetchSize()
|
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