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Expire caches on SQLite lists

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This commit is contained in:
Alinson S. Xavier
2017-06-04 17:24:18 -04:00
parent 0a375ded96
commit 0dc9ec2e5f
2 changed files with 79 additions and 47 deletions
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59
app/src/main/java/org/isoron/uhabits/models/sqlite/SQLiteCheckmarkList.java
View File

@@ -38,6 +38,12 @@ import java.util.*;
public class SQLiteCheckmarkList extends CheckmarkList
{
private static final String ADD_QUERY =
"insert into Checkmarks(habit, timestamp, value) values (?,?,?)";
private static final String INVALIDATE_QUERY =
"delete from Checkmarks where habit = ? and timestamp >= ?";
@Nullable
private HabitRecord habitRecord;
@@ -45,7 +51,7 @@ public class SQLiteCheckmarkList extends CheckmarkList
private final SQLiteUtils<CheckmarkRecord> sqlite;
@Nullable
private Integer todayValue;
private CachedData cache;
@NonNull
private final SQLiteStatement invalidateStatement;
@@ -56,12 +62,6 @@ public class SQLiteCheckmarkList extends CheckmarkList
@NonNull
private final SQLiteDatabase db;
private static final String ADD_QUERY =
"insert into Checkmarks(habit, timestamp, value) values (?,?,?)";
private static final String INVALIDATE_QUERY =
"delete from Checkmarks where habit = ? and timestamp >= ?";
public SQLiteCheckmarkList(Habit habit)
{
super(habit);
@@ -102,8 +102,7 @@ public class SQLiteCheckmarkList extends CheckmarkList
check(habit.getId());
compute(fromTimestamp, toTimestamp);
String query = "select habit, timestamp, value " +
"from checkmarks " +
String query = "select habit, timestamp, value from checkmarks " +
"where habit = ? and timestamp >= ? and timestamp <= ? " +
"order by timestamp desc";
@@ -127,10 +126,19 @@ public class SQLiteCheckmarkList extends CheckmarkList
return toCheckmarks(records);
}
@Override
public int getTodayValue()
{
if (cache == null || cache.expired())
cache = new CachedData(super.getTodayValue());
return cache.todayValue;
}
@Override
public void invalidateNewerThan(long timestamp)
{
todayValue = null;
cache = null;
invalidateStatement.bindLong(1, habit.getId());
invalidateStatement.bindLong(2, timestamp);
invalidateStatement.execute();
@@ -142,10 +150,8 @@ public class SQLiteCheckmarkList extends CheckmarkList
protected Checkmark getNewestComputed()
{
check(habit.getId());
String query = "select habit, timestamp, value " +
"from checkmarks " +
"where habit = ? " +
"order by timestamp desc " +
String query = "select habit, timestamp, value from checkmarks " +
"where habit = ? " + "order by timestamp desc " +
"limit 1";
String params[] = { Long.toString(habit.getId()) };
@@ -157,10 +163,8 @@ public class SQLiteCheckmarkList extends CheckmarkList
protected Checkmark getOldestComputed()
{
check(habit.getId());
String query = "select habit, timestamp, value " +
"from checkmarks " +
"where habit = ? " +
"order by timestamp asc " +
String query = "select habit, timestamp, value from checkmarks " +
"where habit = ? " + "order by timestamp asc " +
"limit 1";
String params[] = { Long.toString(habit.getId()) };
@@ -194,10 +198,21 @@ public class SQLiteCheckmarkList extends CheckmarkList
return checkmarks;
}
@Override
public int getTodayValue()
private static class CachedData
{
if(todayValue == null) todayValue = super.getTodayValue();
return todayValue;
int todayValue;
private long today;
CachedData(int todayValue)
{
this.todayValue = todayValue;
this.today = DateUtils.getStartOfToday();
}
boolean expired()
{
return today != DateUtils.getStartOfToday();
}
}
}

67
app/src/main/java/org/isoron/uhabits/models/sqlite/SQLiteScoreList.java
View File

@@ -27,6 +27,7 @@ import com.activeandroid.*;
import org.isoron.uhabits.models.*;
import org.isoron.uhabits.models.sqlite.records.*;
import org.isoron.uhabits.utils.*;
import org.jetbrains.annotations.*;
import java.util.*;
@@ -36,6 +37,11 @@ import java.util.*;
*/
public class SQLiteScoreList extends ScoreList
{
public static final String ADD_QUERY =
"insert into Score(habit, timestamp, score) values (?,?,?)";
public static final String INVALIDATE_QUERY =
"delete from Score where habit = ? and timestamp >= ?";
@Nullable
private HabitRecord habitRecord;
@@ -43,23 +49,17 @@ public class SQLiteScoreList extends ScoreList
@NonNull
private final SQLiteUtils<ScoreRecord> sqlite;
@Nullable
private Integer todayValue;
@NonNull
private final SQLiteStatement invalidateStatement;
@NonNull
private final SQLiteStatement addStatement;
public static final String ADD_QUERY =
"insert into Score(habit, timestamp, score) values (?,?,?)";
public static final String INVALIDATE_QUERY =
"delete from Score where habit = ? " + "and timestamp >= ?";
private final SQLiteDatabase db;
@Nullable
private CachedData cache = null;
/**
* Constructs a new ScoreList associated with the given habit.
*
@@ -105,15 +105,14 @@ public class SQLiteScoreList extends ScoreList
check(habit.getId());
compute(fromTimestamp, toTimestamp);
String query = "select habit, timestamp, score " +
"from Score " +
"where habit = ? and timestamp >= ? and timestamp <= ? " +
"order by timestamp desc";
String query = "select habit, timestamp, score from Score " +
"where habit = ? and timestamp >= ? and timestamp <= ? " +
"order by timestamp desc";
String params[] = {
Long.toString(habit.getId()),
Long.toString(fromTimestamp),
Long.toString(toTimestamp)
Long.toString(habit.getId()),
Long.toString(fromTimestamp),
Long.toString(toTimestamp)
};
List<ScoreRecord> records = sqlite.query(query, params);
@@ -137,10 +136,19 @@ public class SQLiteScoreList extends ScoreList
return getScoreFromQuery(query, params);
}
@Override
public int getTodayValue()
{
if (cache == null || cache.expired())
cache = new CachedData(super.getTodayValue());
return cache.todayValue;
}
@Override
public void invalidateNewerThan(long timestamp)
{
todayValue = null;
cache = null;
invalidateStatement.bindLong(1, habit.getId());
invalidateStatement.bindLong(2, timestamp);
invalidateStatement.execute();
@@ -171,8 +179,7 @@ public class SQLiteScoreList extends ScoreList
{
check(habit.getId());
String query = "select habit, timestamp, score from Score " +
"where habit = ? order by timestamp desc " +
"limit 1";
"where habit = ? order by timestamp desc limit 1";
String params[] = { Long.toString(habit.getId()) };
return getScoreFromQuery(query, params);
@@ -184,8 +191,7 @@ public class SQLiteScoreList extends ScoreList
{
check(habit.getId());
String query = "select habit, timestamp, score from Score " +
"where habit = ? order by timestamp asc " +
"limit 1";
"where habit = ? order by timestamp asc limit 1";
String params[] = { Long.toString(habit.getId()) };
return getScoreFromQuery(query, params);
@@ -217,10 +223,21 @@ public class SQLiteScoreList extends ScoreList
return scores;
}
@Override
public int getTodayValue()
private static class CachedData
{
if (todayValue == null) todayValue = super.getTodayValue();
return todayValue;
int todayValue;
private long today;
CachedData(int todayValue)
{
this.todayValue = todayValue;
this.today = DateUtils.getStartOfToday();
}
boolean expired()
{
return today != DateUtils.getStartOfToday();
}
}
}