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Merge "Improve documentation of SQLite debugging options."

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This commit is contained in:
Jeff Brown
2012-03-01 10:23:51 -08:00
committed by Android (Google) Code Review
parent c95cd6bca0 638eff7ee1
commit 672f74bbe2
1 changed files with 10 additions and 2 deletions
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12
core/java/android/database/sqlite/SQLiteDebug.java
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@@ -33,12 +33,16 @@ public final class SQLiteDebug {
/**
* Controls the printing of informational SQL log messages.
*
* Enable using "adb shell setprop log.tag.SQLiteLog VERBOSE".
*/
public static final boolean DEBUG_SQL_LOG =
Log.isLoggable("SQLiteLog", Log.VERBOSE);
/**
* Controls the printing of SQL statements as they are executed.
*
* Enable using "adb shell setprop log.tag.SQLiteStatements VERBOSE".
*/
public static final boolean DEBUG_SQL_STATEMENTS =
Log.isLoggable("SQLiteStatements", Log.VERBOSE);
@@ -46,6 +50,8 @@ public final class SQLiteDebug {
/**
* Controls the printing of wall-clock time taken to execute SQL statements
* as they are executed.
*
* Enable using "adb shell setprop log.tag.SQLiteTime VERBOSE".
*/
public static final boolean DEBUG_SQL_TIME =
Log.isLoggable("SQLiteTime", Log.VERBOSE);
@@ -61,15 +67,17 @@ public final class SQLiteDebug {
*
* Reads the "db.log.slow_query_threshold" system property, which can be changed
* by the user at any time. If the value is zero, then all queries will
* be considered slow. If the value does not exist, then no queries will
* be considered slow. If the value does not exist or is negative, then no queries will
* be considered slow.
*
* This value can be changed dynamically while the system is running.
* For example, "adb shell setprop db.log.slow_query_threshold 200" will
* log all queries that take 200ms or longer to run.
* @hide
*/
public static final boolean shouldLogSlowQuery(long elapsedTimeMillis) {
int slowQueryMillis = SystemProperties.getInt("db.log.slow_query_threshold", -1);
return slowQueryMillis >= 0 && elapsedTimeMillis > slowQueryMillis;
return slowQueryMillis >= 0 && elapsedTimeMillis >= slowQueryMillis;
}
/**