@Test
public void BeanClassOfTExpressionOfQArray() {
PathBuilder<Entity> entity = new PathBuilder<Entity>(Entity.class, "entity");
QBean<Entity> beanProjection =
Projections.bean(
Entity.class,
entity.getNumber("cId", Integer.class),
entity.getNumber("eId", Integer.class));
assertEquals(Entity.class, beanProjection.newInstance(1, 2).getClass());
}
@Before
public void setUp() throws Exception {
serializer = new LuceneSerializer(true, true);
entityPath = new PathBuilder<Object>(Object.class, "obj");
title = entityPath.getString("title");
author = entityPath.getString("author");
text = entityPath.getString("text");
publisher = entityPath.getString("publisher");
year = entityPath.getNumber("year", Integer.class);
rating = entityPath.getString("rating");
gross = entityPath.getNumber("gross", Double.class);
longField = entityPath.getNumber("longField", Long.class);
shortField = entityPath.getNumber("shortField", Short.class);
byteField = entityPath.getNumber("byteField", Byte.class);
floatField = entityPath.getNumber("floatField", Float.class);
idx = new RAMDirectory();
config =
new IndexWriterConfig(Version.LUCENE_31, new StandardAnalyzer(Version.LUCENE_30))
.setOpenMode(IndexWriterConfig.OpenMode.CREATE);
writer = new IndexWriter(idx, config);
writer.addDocument(createDocument());
writer.close();
IndexReader reader = IndexReader.open(idx);
searcher = new IndexSearcher(reader);
}
/**
* If filter is number its required to know its concrete class so this private helper method
* creates and returns predicate based on concrete class.
*/
@SuppressWarnings({"unchecked", "rawtypes"})
private NumberPath createNumberPath(PathBuilder entityPath, String key, Object filter) {
if (filter instanceof BigDecimal) {
return entityPath.getNumber(key, BigDecimal.class);
} else if (filter instanceof Long) {
return entityPath.getNumber(key, Long.class);
} else if (filter instanceof Integer) {
return entityPath.getNumber(key, Integer.class);
} else if (filter instanceof Double) {
return entityPath.getNumber(key, Double.class);
} else if (filter instanceof Float) {
return entityPath.getNumber(key, Float.class);
} else if (filter instanceof Byte) {
return entityPath.getNumber(key, Byte.class);
} else if (filter instanceof Short) {
return entityPath.getNumber(key, Short.class);
} else {
throw new IllegalStateException(
"Unknown number type in search filter. Supported type: BigDecimal, Long, Integer, Double, Float, Byte, Short");
}
}