Merge 'bindings/java: Implement date, time related methods under JDBC4PreparedStatement' from Kim Seon Woo

- Implement data and time related methods under JDBC4PreparedStatement

Closes #2864

bindings/java/src/main/java/tech/turso/jdbc4/JDBC4PreparedStatement.java

@@ -6,6 +6,7 @@ import java.io.InputStream;
 import java.io.Reader;
 import java.math.BigDecimal;
 import java.net.URL;
+import java.nio.ByteBuffer;
 import java.sql.Array;
 import java.sql.Blob;
 import java.sql.Clob;
@@ -121,17 +122,38 @@ public final class JDBC4PreparedStatement extends JDBC4Statement implements Prep
 
   @Override
   public void setDate(int parameterIndex, Date x) throws SQLException {
-    // TODO
+    requireNonNull(this.statement);
+    if (x == null) {
+      this.statement.bindNull(parameterIndex);
+    } else {
+      long time = x.getTime();
+      this.statement.bindBlob(
+          parameterIndex, ByteBuffer.allocate(Long.BYTES).putLong(time).array());
+    }
   }
 
   @Override
   public void setTime(int parameterIndex, Time x) throws SQLException {
-    // TODO
+    requireNonNull(this.statement);
+    if (x == null) {
+      this.statement.bindNull(parameterIndex);
+    } else {
+      long time = x.getTime();
+      this.statement.bindBlob(
+          parameterIndex, ByteBuffer.allocate(Long.BYTES).putLong(time).array());
+    }
   }
 
   @Override
   public void setTimestamp(int parameterIndex, Timestamp x) throws SQLException {
-    // TODO
+    requireNonNull(this.statement);
+    if (x == null) {
+      this.statement.bindNull(parameterIndex);
+    } else {
+      long time = x.getTime();
+      this.statement.bindBlob(
+          parameterIndex, ByteBuffer.allocate(Long.BYTES).putLong(time).array());
+    }
   }
 
   @Override
@@ -212,17 +234,18 @@ public final class JDBC4PreparedStatement extends JDBC4Statement implements Prep
 
   @Override
   public void setDate(int parameterIndex, Date x, Calendar cal) throws SQLException {
-    // TODO
+    setDate(parameterIndex, x);
   }
 
   @Override
   public void setTime(int parameterIndex, Time x, Calendar cal) throws SQLException {
-    // TODO
+    setTime(parameterIndex, x);
   }
 
   @Override
   public void setTimestamp(int parameterIndex, Timestamp x, Calendar cal) throws SQLException {
-    // TODO
+    // TODO: Apply calendar timezone conversion
+    setTimestamp(parameterIndex, x);
   }
 
   @Override

bindings/java/src/main/java/tech/turso/jdbc4/JDBC4ResultSet.java

@@ -5,6 +5,7 @@ import java.io.Reader;
 import java.math.BigDecimal;
 import java.math.RoundingMode;
 import java.net.URL;
+import java.nio.ByteBuffer;
 import java.sql.Array;
 import java.sql.Blob;
 import java.sql.Clob;
@@ -146,21 +147,63 @@ public final class JDBC4ResultSet implements ResultSet, ResultSetMetaData {
   }
 
   @Override
-  @SkipNullableCheck
+  @Nullable
   public Date getDate(int columnIndex) throws SQLException {
-    throw new UnsupportedOperationException("not implemented");
+    final Object result = resultSet.get(columnIndex);
+    if (result == null) {
+      return null;
+    }
+    return wrapTypeConversion(
+        () -> {
+          if (result instanceof byte[]) {
+            byte[] bytes = (byte[]) result;
+            if (bytes.length == Long.BYTES) {
+              long time = ByteBuffer.wrap(bytes).getLong();
+              return new Date(time);
+            }
+          }
+          throw new SQLException("Cannot convert value to Date: " + result.getClass());
+        });
   }
 
   @Override
   @SkipNullableCheck
   public Time getTime(int columnIndex) throws SQLException {
-    throw new UnsupportedOperationException("not implemented");
+    final Object result = resultSet.get(columnIndex);
+    if (result == null) {
+      return null;
+    }
+    return wrapTypeConversion(
+        () -> {
+          if (result instanceof byte[]) {
+            byte[] bytes = (byte[]) result;
+            if (bytes.length == Long.BYTES) {
+              long time = ByteBuffer.wrap(bytes).getLong();
+              return new Time(time);
+            }
+          }
+          throw new SQLException("Cannot convert value to Date: " + result.getClass());
+        });
   }
 
   @Override
   @SkipNullableCheck
   public Timestamp getTimestamp(int columnIndex) throws SQLException {
-    throw new UnsupportedOperationException("not implemented");
+    final Object result = resultSet.get(columnIndex);
+    if (result == null) {
+      return null;
+    }
+    return wrapTypeConversion(
+        () -> {
+          if (result instanceof byte[]) {
+            byte[] bytes = (byte[]) result;
+            if (bytes.length == Long.BYTES) {
+              long time = ByteBuffer.wrap(bytes).getLong();
+              return new Timestamp(time);
+            }
+          }
+          throw new SQLException("Cannot convert value to Timestamp: " + result.getClass());
+        });
   }
 
   @Override
@@ -238,9 +281,27 @@ public final class JDBC4ResultSet implements ResultSet, ResultSetMetaData {
   }
 
   @Override
-  @SkipNullableCheck
+  @Nullable
   public Date getDate(String columnLabel) throws SQLException {
-    throw new UnsupportedOperationException("not implemented");
+    final Object result = resultSet.get(columnLabel);
+    if (result == null) {
+      return null;
+    }
+    return wrapTypeConversion(
+        () -> {
+          if (result instanceof byte[]) {
+            byte[] bytes = (byte[]) result;
+            if (bytes.length == Long.BYTES) {
+              long time = ByteBuffer.wrap(bytes).getLong();
+              return new Date(time);
+            }
+          }
+          // Try to parse as string if it's stored as TEXT
+          if (result instanceof String) {
+            return Date.valueOf((String) result);
+          }
+          throw new SQLException("Cannot convert value to Date: " + result.getClass());
+        });
   }
 
   @Override
@@ -252,7 +313,7 @@ public final class JDBC4ResultSet implements ResultSet, ResultSetMetaData {
   @Override
   @SkipNullableCheck
   public Timestamp getTimestamp(String columnLabel) throws SQLException {
-    throw new UnsupportedOperationException("not implemented");
+    return getTimestamp(findColumn(columnLabel));
   }
 
   @Override
@@ -738,39 +799,45 @@ public final class JDBC4ResultSet implements ResultSet, ResultSetMetaData {
   }
 
   @Override
-  @SkipNullableCheck
+  @Nullable
   public Date getDate(int columnIndex, Calendar cal) throws SQLException {
-    throw new UnsupportedOperationException("not implemented");
+    // TODO: Properly handle timezone conversion with Calendar
+    return getDate(columnIndex);
   }
 
   @Override
-  @SkipNullableCheck
+  @Nullable
   public Date getDate(String columnLabel, Calendar cal) throws SQLException {
-    throw new UnsupportedOperationException("not implemented");
+    // TODO: Properly handle timezone conversion with Calendar
+    return getDate(columnLabel);
   }
 
   @Override
   @SkipNullableCheck
   public Time getTime(int columnIndex, Calendar cal) throws SQLException {
-    throw new UnsupportedOperationException("not implemented");
+    // TODO: Properly handle timezone conversion with Calendar
+    return getTime(columnIndex);
   }
 
   @Override
   @SkipNullableCheck
   public Time getTime(String columnLabel, Calendar cal) throws SQLException {
-    throw new UnsupportedOperationException("not implemented");
+    // TODO: Properly handle timezone conversion with Calendar
+    return getTime(columnLabel);
   }
 
   @Override
   @SkipNullableCheck
   public Timestamp getTimestamp(int columnIndex, Calendar cal) throws SQLException {
-    throw new UnsupportedOperationException("not implemented");
+    // TODO: Apply calendar timezone conversion
+    return getTimestamp(columnIndex);
   }
 
   @Override
   @SkipNullableCheck
   public Timestamp getTimestamp(String columnLabel, Calendar cal) throws SQLException {
-    throw new UnsupportedOperationException("not implemented");
+    // TODO: Apply calendar timezone conversion
+    return getTimestamp(findColumn(columnLabel));
   }
 
   @Override

bindings/java/src/test/java/tech/turso/jdbc4/JDBC4PreparedStatementTest.java

@@ -6,9 +6,12 @@ import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.math.BigDecimal;
+import java.sql.Date;
 import java.sql.PreparedStatement;
 import java.sql.ResultSet;
 import java.sql.SQLException;
+import java.sql.Time;
+import java.sql.Timestamp;
 import java.util.Properties;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
@@ -225,6 +228,84 @@ class JDBC4PreparedStatementTest {
     assertArrayEquals(new byte[] {7, 8, 9}, rs.getBytes(1));
   }
 
+  @Test
+  void testSetDate() throws SQLException {
+    connection.prepareStatement("CREATE TABLE test (col BLOB)").execute();
+    PreparedStatement stmt =
+        connection.prepareStatement("INSERT INTO test (col) VALUES (?), (?), (?)");
+
+    Date date1 = new Date(1000000000000L);
+    Date date2 = new Date(1500000000000L);
+    Date date3 = new Date(2000000000000L);
+
+    stmt.setDate(1, date1);
+    stmt.setDate(2, date2);
+    stmt.setDate(3, date3);
+    stmt.execute();
+
+    PreparedStatement stmt2 = connection.prepareStatement("SELECT * FROM test;");
+    JDBC4ResultSet rs = (JDBC4ResultSet) stmt2.executeQuery();
+
+    assertTrue(rs.next());
+    assertEquals(date1, rs.getDate(1));
+    assertTrue(rs.next());
+    assertEquals(date2, rs.getDate(1));
+    assertTrue(rs.next());
+    assertEquals(date3, rs.getDate(1));
+  }
+
+  @Test
+  void testSetTime() throws SQLException {
+    connection.prepareStatement("CREATE TABLE test (col BLOB)").execute();
+    PreparedStatement stmt =
+        connection.prepareStatement("INSERT INTO test (col) VALUES (?), (?), (?)");
+
+    Time time1 = new Time(1000000000000L);
+    Time time2 = new Time(1500000000000L);
+    Time time3 = new Time(2000000000000L);
+
+    stmt.setTime(1, time1);
+    stmt.setTime(2, time2);
+    stmt.setTime(3, time3);
+    stmt.execute();
+
+    PreparedStatement stmt2 = connection.prepareStatement("SELECT * FROM test;");
+    JDBC4ResultSet rs = (JDBC4ResultSet) stmt2.executeQuery();
+
+    assertTrue(rs.next());
+    assertEquals(time1, rs.getTime(1));
+    assertTrue(rs.next());
+    assertEquals(time2, rs.getTime(1));
+    assertTrue(rs.next());
+    assertEquals(time3, rs.getTime(1));
+  }
+
+  @Test
+  void testSetTimestamp() throws SQLException {
+    connection.prepareStatement("CREATE TABLE test (col BLOB)").execute();
+    PreparedStatement stmt =
+        connection.prepareStatement("INSERT INTO test (col) VALUES (?), (?), (?)");
+
+    Timestamp timestamp1 = new Timestamp(1000000000000L);
+    Timestamp timestamp2 = new Timestamp(1500000000000L);
+    Timestamp timestamp3 = new Timestamp(2000000000000L);
+
+    stmt.setTimestamp(1, timestamp1);
+    stmt.setTimestamp(2, timestamp2);
+    stmt.setTimestamp(3, timestamp3);
+    stmt.execute();
+
+    PreparedStatement stmt2 = connection.prepareStatement("SELECT * FROM test;");
+    JDBC4ResultSet rs = (JDBC4ResultSet) stmt2.executeQuery();
+
+    assertTrue(rs.next());
+    assertEquals(timestamp1, rs.getTimestamp(1));
+    assertTrue(rs.next());
+    assertEquals(timestamp2, rs.getTimestamp(1));
+    assertTrue(rs.next());
+    assertEquals(timestamp3, rs.getTimestamp(1));
+  }
+
   @Test
   void testInsertMultipleTypes() throws SQLException {
     connection