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public interface QueryMetadata
Provides a common interface for accessing query metadata.
Field Summary | |
---|---|
static java.lang.String |
CACHE_GROUPS_PROPERTY
|
static java.lang.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 java.lang.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 java.lang.String |
FETCH_OFFSET_PROPERTY
Defines the name of the property for the query fetch
offset . |
static boolean |
FETCHING_DATA_ROWS_DEFAULT
|
static java.lang.String |
FETCHING_DATA_ROWS_PROPERTY
|
static int |
PAGE_SIZE_DEFAULT
Defines default query page size, which is zero for no pagination. |
static java.lang.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 java.lang.String |
STATEMENT_FETCH_SIZE_PROPERTY
Defines the name of the property for the query fetch
size . |
Method Summary | |
---|---|
java.lang.String[] |
getCacheGroups()
Returns an optional array of cache "groups". |
java.lang.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. |
java.util.Map<java.lang.String,java.lang.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. |
java.util.List<java.lang.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 java.lang.String FETCH_LIMIT_PROPERTY
fetch limit
.
static final int FETCH_LIMIT_DEFAULT
static final java.lang.String FETCH_OFFSET_PROPERTY
fetch
offset
.
static final int FETCH_OFFSET_DEFAULT
static final java.lang.String PAGE_SIZE_PROPERTY
page size
.
static final int PAGE_SIZE_DEFAULT
static final java.lang.String FETCHING_DATA_ROWS_PROPERTY
static final boolean FETCHING_DATA_ROWS_DEFAULT
static final java.lang.String CACHE_STRATEGY_PROPERTY
static final java.lang.String CACHE_GROUPS_PROPERTY
static final java.lang.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()
java.lang.String getCacheKey()
java.lang.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()
java.util.Map<java.lang.String,java.lang.String> getPathSplitAliases()
java.util.List<java.lang.Object> getResultSetMapping()
EntityResultSegment
or ScalarResultSegment
. The returned
list can be null.
int getStatementFetchSize()
|
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