Example usage for android.database.sqlite SQLiteConnection isPrimaryConnection

Introduction

In this page you can find the example usage for android.database.sqlite SQLiteConnection isPrimaryConnection.

Prototype

public boolean isPrimaryConnection() 

Source Link

Document

Returns true if this is the primary database connection.

Usage

From source file:io.requery.android.database.sqlite.SQLiteConnectionPool.java

private SQLiteConnection tryAcquirePrimaryConnectionLocked(int connectionFlags) {
    // If the primary connection is available, acquire it now.
    SQLiteConnection connection = mAvailablePrimaryConnection;
    if (connection != null) {
        mAvailablePrimaryConnection = null;
        finishAcquireConnectionLocked(connection, connectionFlags); // might throw
        return connection;
    }/*www.jav a 2  s.  c o m*/

    // Make sure that the primary connection actually exists and has just been acquired.
    for (SQLiteConnection acquiredConnection : mAcquiredConnections.keySet()) {
        if (acquiredConnection.isPrimaryConnection()) {
            return null;
        }
    }

    // Uhoh.  No primary connection!  Either this is the first time we asked
    // for it, or maybe it leaked?
    connection = openConnectionLocked(mConfiguration, true /*primaryConnection*/); // might throw
    finishAcquireConnectionLocked(connection, connectionFlags); // might throw
    return connection;
}

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From source file:io.requery.android.database.sqlite.SQLiteConnectionPool.java

/**
 * Returns true if the session should yield the connection due to
 * contention over available database connections.
 *
 * @param connection The connection owned by the session.
 * @param connectionFlags The connection request flags.
 * @return True if the session should yield its connection.
 *
 * @throws IllegalStateException if the connection was not acquired
 * from this pool or if it has already been released.
 *///from   w  w  w.j a v a 2  s .c o  m
public boolean shouldYieldConnection(SQLiteConnection connection, int connectionFlags) {
    synchronized (mLock) {
        if (!mAcquiredConnections.containsKey(connection)) {
            throw new IllegalStateException(
                    "Cannot perform this operation " + "because the specified connection was not acquired "
                            + "from this pool or has already been released.");
        }

        if (!mIsOpen) {
            return false;
        }

        return isSessionBlockingImportantConnectionWaitersLocked(connection.isPrimaryConnection(),
                connectionFlags);
    }
}

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From source file:io.requery.android.database.sqlite.SQLiteConnectionPool.java

/**
 * Releases a connection back to the pool.
 * <p>/*w  w w  .  j ava  2  s. c  o m*/
 * It is ok to call this method after the pool has closed, to release
 * connections that were still in use at the time of closure.
 * </p>
 *
 * @param connection The connection to release.  Must not be null.
 *
 * @throws IllegalStateException if the connection was not acquired
 * from this pool or if it has already been released.
 */
public void releaseConnection(SQLiteConnection connection) {
    synchronized (mLock) {
        AcquiredConnectionStatus status = mAcquiredConnections.remove(connection);
        if (status == null) {
            throw new IllegalStateException(
                    "Cannot perform this operation " + "because the specified connection was not acquired "
                            + "from this pool or has already been released.");
        }

        if (!mIsOpen) {
            closeConnectionAndLogExceptionsLocked(connection);
        } else if (connection.isPrimaryConnection()) {
            if (recycleConnectionLocked(connection, status)) {
                assert mAvailablePrimaryConnection == null;
                mAvailablePrimaryConnection = connection;
            }
            wakeConnectionWaitersLocked();
        } else if (mAvailableNonPrimaryConnections.size() >= mMaxConnectionPoolSize - 1) {
            closeConnectionAndLogExceptionsLocked(connection);
        } else {
            if (recycleConnectionLocked(connection, status)) {
                mAvailableNonPrimaryConnections.add(connection);
            }
            wakeConnectionWaitersLocked();
        }
    }
}

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