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authorAnton Tananaev <anton.tananaev@gmail.com>2015-12-07 10:09:08 +1300
committerAnton Tananaev <anton.tananaev@gmail.com>2015-12-07 10:09:08 +1300
commit5b57c0fdb81bae87ca487e1d0087f8927b3fd07f (patch)
treec3733bca54002ca694b6d7b83b147de87212c5eb /src/org/traccar/database/QueryBuilder.java
parent33b2a5c9ab70ffe7bbdd074ce430920d2a0d3941 (diff)
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Replace factory method with reflection
Diffstat (limited to 'src/org/traccar/database/QueryBuilder.java')
-rw-r--r--src/org/traccar/database/QueryBuilder.java23
1 files changed, 13 insertions, 10 deletions
diff --git a/src/org/traccar/database/QueryBuilder.java b/src/org/traccar/database/QueryBuilder.java
index ca6335556..d0c1c649f 100644
--- a/src/org/traccar/database/QueryBuilder.java
+++ b/src/org/traccar/database/QueryBuilder.java
@@ -38,7 +38,6 @@ import javax.json.stream.JsonParsingException;
import javax.sql.DataSource;
import org.traccar.Context;
import org.traccar.helper.Log;
-import org.traccar.model.Factory;
import org.traccar.model.MiscFormatter;
public final class QueryBuilder {
@@ -272,8 +271,8 @@ public final class QueryBuilder {
void process(T object, ResultSet resultSet) throws SQLException;
}
- public <T extends Factory> T executeQuerySingle(T prototype) throws SQLException {
- Collection<T> result = executeQuery(prototype);
+ public <T> T executeQuerySingle(Class<T> clazz) throws SQLException {
+ Collection<T> result = executeQuery(clazz);
if (!result.isEmpty()) {
return result.iterator().next();
} else {
@@ -281,7 +280,7 @@ public final class QueryBuilder {
}
}
- private <T extends Factory> void addProcessors(
+ private <T> void addProcessors(
List<ResultSetProcessor<T>> processors, Class<?> parameterType, final Method method, final String name) {
if (parameterType.equals(boolean.class)) {
@@ -367,7 +366,7 @@ public final class QueryBuilder {
}
}
- public <T extends Factory> Collection<T> executeQuery(T prototype) throws SQLException {
+ public <T> Collection<T> executeQuery(Class<T> clazz) throws SQLException {
List<T> result = new LinkedList<>();
if (query != null) {
@@ -380,7 +379,7 @@ public final class QueryBuilder {
List<ResultSetProcessor<T>> processors = new LinkedList<>();
- Method[] methods = prototype.getClass().getMethods();
+ Method[] methods = clazz.getMethods();
for (final Method method : methods) {
if (method.getName().startsWith("set") && method.getParameterTypes().length == 1) {
@@ -404,11 +403,15 @@ public final class QueryBuilder {
}
while (resultSet.next()) {
- T object = (T) prototype.create();
- for (ResultSetProcessor<T> processor : processors) {
- processor.process(object, resultSet);
+ try {
+ T object = clazz.newInstance();
+ for (ResultSetProcessor<T> processor : processors) {
+ processor.process(object, resultSet);
+ }
+ result.add(object);
+ } catch (InstantiationException | IllegalAccessException e) {
+ throw new IllegalArgumentException();
}
- result.add(object);
}
}