Package org.h2.expression

Examples of org.h2.expression.Variable


    private Expression readTerm() {
        Expression r;
        switch (currentTokenType) {
        case AT:
            read();
            r = new Variable(session, readAliasIdentifier());
            if (readIf(":=")) {
                Expression value = readExpression();
                Function function = Function.getFunction(database, "SET");
                function.setParameter(0, r);
                function.setParameter(1, value);
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    private Expression readTerm() {
        Expression r;
        switch (currentTokenType) {
        case AT:
            read();
            r = new Variable(session, readAliasIdentifier());
            if (readIf(":=")) {
                Expression value = readExpression();
                Function function = Function.getFunction(database, "SET");
                function.setParameter(0, r);
                function.setParameter(1, value);
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    private Expression readTerm() {
        Expression r;
        switch (currentTokenType) {
        case AT:
            read();
            r = new Variable(session, readAliasIdentifier());
            if (readIf(":=")) {
                Expression value = readExpression();
                Function function = Function.getFunction(database, "SET");
                function.setParameter(0, r);
                function.setParameter(1, value);
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    private Expression readTerm() {
        Expression r;
        switch (currentTokenType) {
        case AT:
            read();
            r = new Variable(session, readAliasIdentifier());
            if (readIf(":=")) {
                Expression value = readExpression();
                Function function = Function.getFunction(database, "SET");
                function.setParameter(0, r);
                function.setParameter(1, value);
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        testReadOnly();
        testAdapter();
    }

    private static void testAdapter() {
        TraceSystem ts = new TraceSystem(null);
        ts.setLevelFile(TraceSystem.ADAPTER);
        ts.getTrace("test").info("test");
        ts.close();
    }
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        ts.getTrace("test").info("test");
        ts.close();
    }

    private void testTraceDebug() {
        TraceSystem ts = new TraceSystem(null);
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        ts.setSysOut(new PrintStream(out));
        ts.setLevelSystemOut(TraceSystem.DEBUG);
        ts.getTrace("test").debug(new Exception("error"), "test");
        ts.close();
        String outString = new String(out.toByteArray());
        assertContains(outString, "error");
        assertContains(outString, "Exception");
        assertContains(outString, "test");
    }
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    private void testReadOnly() throws Exception {
        String readOnlyFile = getBaseDir() + "/readOnly.log";
        IOUtils.delete(readOnlyFile);
        IOUtils.openFileOutputStream(readOnlyFile, false).close();
        FileSystem.getInstance(getBaseDir()).setReadOnly(readOnlyFile);
        TraceSystem ts = new TraceSystem(readOnlyFile);
        ts.setLevelFile(TraceSystem.INFO);
        ts.getTrace("test").info("test");
        IOUtils.delete(readOnlyFile);
        ts.close();
    }
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    private void testFutureModificationDate() throws Exception {
        File f = new File(getFile());
        f.delete();
        f.createNewFile();
        f.setLastModified(System.currentTimeMillis() + 10000);
        FileLock lock = new FileLock(new TraceSystem(null), getFile(), Constants.LOCK_SLEEP);
        lock.lock(FileLock.LOCK_FILE);
        lock.unlock();
    }
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        lock.lock(FileLock.LOCK_FILE);
        lock.unlock();
    }

    private void testSimple() {
        FileLock lock1 = new FileLock(new TraceSystem(null), getFile(), Constants.LOCK_SLEEP);
        FileLock lock2 = new FileLock(new TraceSystem(null), getFile(), Constants.LOCK_SLEEP);
        lock1.lock(FileLock.LOCK_FILE);
        createClassProxy(FileLock.class);
        assertThrows(ErrorCode.DATABASE_ALREADY_OPEN_1, lock2).
                lock(FileLock.LOCK_FILE);
        lock1.unlock();
        lock2 = new FileLock(new TraceSystem(null), getFile(), Constants.LOCK_SLEEP);
        lock2.lock(FileLock.LOCK_FILE);
        lock2.unlock();
    }
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    }

    public void run() {
        FileLock lock = null;
        while (!stop) {
            lock = new FileLock(new TraceSystem(null), getFile(), 100);
            try {
                lock.lock(allowSockets ? FileLock.LOCK_SOCKET : FileLock.LOCK_FILE);
                base.trace(lock + " locked");
                locks++;
                if (locks > 1) {
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