diff options
Diffstat (limited to 'src/main/java/org/traccar/config')
| -rw-r--r-- | src/main/java/org/traccar/config/Keys.java | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/src/main/java/org/traccar/config/Keys.java b/src/main/java/org/traccar/config/Keys.java index 1411e8a13..e8e0ff207 100644 --- a/src/main/java/org/traccar/config/Keys.java +++ b/src/main/java/org/traccar/config/Keys.java @@ -893,8 +893,11 @@ public final class Keys { Collections.singletonList(KeyType.GLOBAL)); /** - * Filter records by Maximum Speed value in knots. Can be used to filter jumps to far locations even if they're - * marked as valid. Shouldn't be too low. Start testing with values at about 25000. + * Filter records by Maximum Speed value in knots. Can be used to filter jumps to far locations even if Position + * appears valid or if Position `speed` field reported by the device is also within limits. Calculates speed from + * the distance to the previous position and the elapsed time. + * + * Tip: Shouldn't be too low. Start testing with values at about 25000. */ public static final ConfigKey<Integer> FILTER_MAX_SPEED = new ConfigKey<>( "filter.maxSpeed", @@ -908,8 +911,20 @@ public final class Keys { Collections.singletonList(KeyType.GLOBAL)); /** - * Time limit for the filtering in seconds. If the time difference between last position and a new one is more than - * this limit, the new position will not be filtered out. + * If false, the server expects all locations to come sequentially (for each device). Filter checks for duplicates, + * distance, speed, or time period only against the location that was last received by server. + * + * If true, the server expects locations to come at random order (since tracking device might go offline). + * Filter checks for duplicates, distance, speed, or time period against the preceding Position's. + * Important: setting to true can cause potential performance issues. + */ + public static final ConfigKey<Boolean> FILTER_RELATIVE = new ConfigKey<>( + "filter.relative", + Collections.singletonList(KeyType.GLOBAL)); + + /** + * Time limit for the filtering in seconds. If the time difference between the last position was received by server + * and a new position is received by server is more than this limit, the new position will not be filtered out. */ public static final ConfigKey<Long> FILTER_SKIP_LIMIT = new ConfigKey<>( "filter.skipLimit", @@ -917,6 +932,7 @@ public final class Keys { /** * Enable attributes skipping. Attribute skipping can be enabled in the config or device attributes. + * If position contains any attribute mentioned in "filter.skipAttributes" config key, position is not filtered out. */ public static final ConfigKey<Boolean> FILTER_SKIP_ATTRIBUTES_ENABLE = new ConfigKey<>( "filter.skipAttributes.enable", |