/**
* Creates a data source out of the query result.
*
* @return the data source
*/
protected JRDataSource createResultDatasource() {
JRDataSource resDatasource;
String runType =
JRProperties.getProperty(
dataset, JRHibernateQueryExecuterFactory.PROPERTY_HIBERNATE_QUERY_RUN_TYPE);
boolean useFieldDescriptions =
JRProperties.getBooleanProperty(
dataset,
JRHibernateQueryExecuterFactory.PROPERTY_HIBERNATE_FIELD_MAPPING_DESCRIPTIONS,
true);
if (runType == null
|| runType.equals(JRHibernateQueryExecuterFactory.VALUE_HIBERNATE_QUERY_RUN_TYPE_LIST)) {
try {
int pageSize =
JRProperties.getIntegerProperty(
dataset,
JRHibernateQueryExecuterFactory.PROPERTY_HIBERNATE_QUERY_LIST_PAGE_SIZE,
0);
resDatasource = new JRHibernateListDataSource(this, useFieldDescriptions, pageSize);
} catch (NumberFormatException e) {
throw new JRRuntimeException(
"The "
+ JRHibernateQueryExecuterFactory.PROPERTY_HIBERNATE_QUERY_LIST_PAGE_SIZE
+ " property must be numerical.",
e);
}
} else if (runType.equals(
JRHibernateQueryExecuterFactory.VALUE_HIBERNATE_QUERY_RUN_TYPE_ITERATE)) {
resDatasource = new JRHibernateIterateDataSource(this, useFieldDescriptions);
} else if (runType.equals(
JRHibernateQueryExecuterFactory.VALUE_HIBERNATE_QUERY_RUN_TYPE_SCROLL)) {
resDatasource = new JRHibernateScrollDataSource(this, useFieldDescriptions);
} else {
throw new JRRuntimeException(
"Unknown value for the "
+ JRHibernateQueryExecuterFactory.PROPERTY_HIBERNATE_QUERY_RUN_TYPE
+ " property. Possible values are "
+ JRHibernateQueryExecuterFactory.VALUE_HIBERNATE_QUERY_RUN_TYPE_LIST
+ ", "
+ JRHibernateQueryExecuterFactory.VALUE_HIBERNATE_QUERY_RUN_TYPE_ITERATE
+ " and "
+ JRHibernateQueryExecuterFactory.VALUE_HIBERNATE_QUERY_RUN_TYPE_SCROLL
+ ".");
}
return resDatasource;
}
/**
* Creates a crosstab bucketing engine.
*
* @param rowBuckets the row bucket definitions
* @param columnBuckets the column bucket definitions
* @param measures the measure definitions
* @param sorted whether the data is presorted
* @param retrieveTotal totals to retrieve along with the cell values
*/
public BucketingService(
List rowBuckets,
List columnBuckets,
List measures,
boolean sorted,
boolean[][] retrieveTotal) {
this.sorted = sorted;
buckets = new BucketDefinition[DIMENSIONS][];
rowBucketCount = rowBuckets.size();
buckets[DIMENSION_ROW] = new BucketDefinition[rowBucketCount];
rowBuckets.toArray(buckets[DIMENSION_ROW]);
colBucketCount = columnBuckets.size();
buckets[DIMENSION_COLUMN] = new BucketDefinition[colBucketCount];
columnBuckets.toArray(buckets[DIMENSION_COLUMN]);
allBuckets = new BucketDefinition[rowBucketCount + colBucketCount];
System.arraycopy(buckets[DIMENSION_ROW], 0, allBuckets, 0, rowBucketCount);
System.arraycopy(buckets[DIMENSION_COLUMN], 0, allBuckets, rowBucketCount, colBucketCount);
origMeasureCount = measures.size();
List measuresList = new ArrayList(measures.size() * 2);
List measureIndexList = new ArrayList(measures.size() * 2);
for (int i = 0; i < measures.size(); ++i) {
MeasureDefinition measure = (MeasureDefinition) measures.get(i);
addMeasure(measure, i, measuresList, measureIndexList);
}
this.measures = new MeasureDefinition[measuresList.size()];
measuresList.toArray(this.measures);
this.measureIndexes = new int[measureIndexList.size()];
for (int i = 0; i < measureIndexes.length; ++i) {
measureIndexes[i] = ((Integer) measureIndexList.get(i)).intValue();
}
this.retrieveTotal = retrieveTotal;
checkTotals();
bucketValueMap = createBucketMap(0);
zeroUserMeasureValues = initUserMeasureValues();
bucketMeasureLimit = JRProperties.getIntegerProperty(PROPERTY_BUCKET_MEASURE_LIMIT, 0);
}
/**
* Creates the Hibernate query object.
*
* <p>If the value of the {@link
* JRHibernateQueryExecuterFactory#PARAMETER_HIBERNATE_FILTER_COLLECTION
* PARAMETER_HIBERNATE_FILTER_COLLECTION} is not null, then a filter query is created using the
* value of the parameter as the collection.
*
* @param queryString the query string
*/
protected synchronized void createQuery(String queryString) {
if (log.isDebugEnabled()) {
log.debug("HQL query: " + queryString);
}
Object filterCollection =
getParameterValue(JRHibernateQueryExecuterFactory.PARAMETER_HIBERNATE_FILTER_COLLECTION);
if (filterCollection == null) {
query = session.createQuery(queryString);
} else {
query = session.createFilter(filterCollection, queryString);
}
query.setReadOnly(true);
int fetchSize =
JRProperties.getIntegerProperty(
dataset, JRJdbcQueryExecuterFactory.PROPERTY_JDBC_FETCH_SIZE, 0);
if (fetchSize != 0) {
query.setFetchSize(fetchSize);
}
setParameters();
}
