@Test
public void testStringAppend() throws PersistitException {
int initialLength = 256;
final String randomString = createString(initialLength);
final Exchange ex = _persistit.getExchange("persistit", randomString, true);
ex.clear().append(randomString);
ex.getValue().put(randomString);
ex.store();
ex.clear().append(randomString);
ex.fetch();
assertEquals(randomString, ex.getValue().getString());
/* lets double key length but keep value the same */
initialLength *= 2;
String randomKey = createString(initialLength);
ex.clear().append(randomKey);
ex.getValue().put(randomString);
ex.store();
ex.clear().append(randomKey);
ex.fetch();
assertEquals(randomString, ex.getValue().getString());
/* now lets keep doubling value length for kicks */
for (int i = 0; i < 12; i++) {
initialLength *= 2;
final String randomValue = createString(initialLength);
ex.clear().append(randomKey);
ex.getValue().put(randomValue);
ex.store();
ex.clear().append(randomKey);
ex.fetch();
assertEquals(randomValue, ex.getValue().getString());
}
/* now double the key length */
initialLength = 256;
for (int i = 0; i < 2; i++) {
initialLength *= 2;
randomKey = createString(initialLength);
ex.clear().append(randomKey);
ex.getValue().put(randomString);
ex.store();
ex.clear().append(randomKey);
ex.fetch();
assertEquals(randomString, ex.getValue().getString());
}
/*
* set key length to value larger than max and make sure exception is
* thrown
*/
initialLength = 2048; // 2047 is max key length
randomKey = createString(initialLength);
try {
ex.clear().append(randomKey);
fail("ConversionException should have been thrown");
} catch (final ConversionException expected) {
}
}
@Test
public void testAppend() throws PersistitException {
final Exchange ex = _persistit.getExchange("persistit", "tree", true);
final String mockValue = "PADRAIG";
/* test boolean append */
ex.clear().append(true);
ex.getValue().put(mockValue);
ex.store();
ex.clear().append(true);
ex.fetch();
assertEquals(mockValue, ex.getValue().getString());
/* test float append */
final float floatKey = 5.545454f;
ex.clear().append(floatKey);
ex.getValue().put(mockValue);
ex.store();
ex.clear().append(floatKey);
ex.fetch();
assertEquals(mockValue, ex.getValue().getString());
/* test double append */
final double doubleKey = 6.66;
ex.clear().append(doubleKey);
ex.getValue().put(mockValue);
ex.store();
ex.clear().append(doubleKey);
ex.fetch();
assertEquals(mockValue, ex.getValue().getString());
/* test int append */
final int intKey = 6;
ex.clear().append(intKey);
ex.getValue().put(mockValue);
ex.store();
ex.clear().append(intKey);
ex.fetch();
assertEquals(mockValue, ex.getValue().getString());
/* test byte append */
final byte oneByte = 1;
ex.clear().append(oneByte);
ex.getValue().put(mockValue);
ex.store();
ex.clear().append(oneByte);
ex.fetch();
assertEquals(mockValue, ex.getValue().getString());
/* test short append */
final short smallShort = 1234;
ex.clear().append(smallShort);
ex.getValue().put(mockValue);
ex.store();
ex.clear().append(smallShort);
ex.fetch();
assertEquals(mockValue, ex.getValue().getString());
}
@Test
public void testTraversal() throws PersistitException {
final Exchange ex = _persistit.getExchange("persistit", "gogo", true);
final String mockValue = createString(256);
/* insert 1000 records */
for (int i = 0; i < 1000; i++) {
final String key = createString(32);
ex.clear().append(key);
ex.getValue().put(mockValue);
ex.store();
}
/* traverse forwards through those values */
ex.clear().to(Key.BEFORE);
while (ex.next()) {
ex.fetch();
assertEquals(mockValue, ex.getValue().getString());
}
ex.clear().to(Key.BEFORE);
while (ex.hasNext()) {
ex.next();
ex.fetch();
assertEquals(mockValue, ex.getValue().getString());
}
/* now traverse backwards through those values */
ex.clear().to(Key.AFTER);
while (ex.previous()) {
ex.fetch();
assertEquals(mockValue, ex.getValue().getString());
}
ex.clear().to(Key.AFTER);
while (ex.hasPrevious()) {
ex.previous();
ex.fetch();
assertEquals(mockValue, ex.getValue().getString());
}
/* now use the traverse method with various directions */
ex.clear().to(Key.BEFORE);
final Key key = ex.getKey();
final KeyFilter kf = new KeyFilter(key);
/* this is mostly to test if we can trigger bad things */
assertEquals(false, ex.traverse(Key.EQ, kf, 4));
assertEquals(false, ex.traverse(Key.GT, kf, 4));
assertEquals(false, ex.traverse(Key.GTEQ, kf, 4));
assertEquals(false, ex.traverse(Key.LT, kf, 4));
assertEquals(false, ex.traverse(Key.LTEQ, kf, 4));
}
@Test
public void testKeyValues() throws PersistitException {
final Exchange ex = _persistit.getExchange("persistit", "gogo", true);
final String firstValue = new String("PADRAIG");
final String secondValue = new String("SARAH");
final String thirdValue = new String("TEENY");
final String fourthValue = new String("NIMBUS");
ex.clear().append(-2);
ex.getValue().put(firstValue);
ex.store();
ex.clear().append(-1);
ex.getValue().put(secondValue);
ex.store();
ex.clear().append(0);
ex.getValue().put(thirdValue);
ex.store();
ex.clear().append(1);
ex.getValue().put(fourthValue);
ex.store();
ex.clear().to(-2);
ex.fetch();
assertEquals(firstValue, ex.getValue().getString());
ex.clear().to(-1);
ex.fetch();
assertEquals(secondValue, ex.getValue().getString());
ex.clear().to(0);
ex.fetch();
assertEquals(thirdValue, ex.getValue().getString());
ex.clear().to(1);
ex.fetch();
assertEquals(fourthValue, ex.getValue().getString());
ex.clear().append(-2);
ex.remove();
ex.getValue().put(-2);
ex.store();
ex.clear().append(-1);
ex.remove();
ex.getValue().put(-1);
ex.store();
ex.clear().append(0);
ex.remove();
ex.getValue().put(0);
ex.store();
ex.clear().append(1);
ex.remove();
ex.getValue().put(1);
ex.store();
ex.clear().to(-2);
ex.fetch();
assertEquals(-2, ex.getValue().getInt());
ex.clear().to(-1);
ex.fetch();
assertEquals(-1, ex.getValue().getInt());
ex.clear().to(0);
ex.fetch();
assertEquals(0, ex.getValue().getInt());
ex.clear().to(1);
ex.fetch();
assertEquals(1, ex.getValue().getInt());
}