Add Java Docs

instrumentation/jdbc/library/src/main/java/io/opentelemetry/instrumentation/jdbc/datasource/OpenTelemetryDataSourceBuilder.java

@@ -10,7 +10,8 @@
 import io.opentelemetry.instrumentation.jdbc.internal.JdbcInstrumenterFactory;
 import javax.sql.DataSource;
 
-public class OpenTelemetryDataSourceBuilder {
+/** A builder for {@link OpenTelemetryDataSource}. */
+public final class OpenTelemetryDataSourceBuilder {
 
   private final DataSource delegate;
 
@@ -22,23 +23,44 @@ public class OpenTelemetryDataSourceBuilder {
 
   private boolean statementSanitizationEnabled = true;
 
-  OpenTelemetryDataSourceBuilder(DataSource delegate, OpenTelemetry openTelemetry) {
+  /**
+   * Creates a builder for {@link OpenTelemetryDataSource}.
+   *
+   * @param delegate the DataSource to wrap
+   * @param openTelemetry the OpenTelemetry instance to setup for
+   */
+  public OpenTelemetryDataSourceBuilder(DataSource delegate, OpenTelemetry openTelemetry) {
     this.delegate = delegate;
     this.openTelemetry = openTelemetry;
   }
 
+  /**
+   * Configures whether JDBC Connections are instrumented. Default to 'true'.
+   *
+   * @param enabled a boolean indicating whether to enable the DataSource instrumenter
+   */
   @CanIgnoreReturnValue
   public OpenTelemetryDataSourceBuilder enableDataSourceInstrumenter(boolean enabled) {
     this.dataSourceInstrumenterEnabled = enabled;
     return this;
   }
 
+  /**
+   * Configures whether JDBC Statements are instrumented. Defaults to 'true'.
+   *
+   * @param enabled a boolean indicating whether to enable the Statement instrumenter
+   */
   @CanIgnoreReturnValue
   public OpenTelemetryDataSourceBuilder enableStatementInstrumenter(boolean enabled) {
     this.statementInstrumenterEnabled = enabled;
     return this;
   }
 
+  /**
+   * Configures whether JDBC Statements are sanitized. Defaults to 'true'.
+   *
+   * @param enabled a boolean indicating whether to enable Statement sanitization
+   */
   @CanIgnoreReturnValue
   public OpenTelemetryDataSourceBuilder enableStatementSanitization(boolean enabled) {
     this.statementSanitizationEnabled = enabled;