Fixed some bugs

dataframe-spring/README.md

@@ -11,7 +11,6 @@ Inspired by Spring Data's approach to data source management, this integration s
 - **@JsonDataSource** - JSON files with type clash handling and key-value processing
 - **@ArrowDataSource** - Arrow/Parquet/Feather files with format auto-detection
 - **@JdbcDataSource** - Database tables and custom queries with connection pooling
-- **@DataSource** - Legacy CSV support (deprecated, use @CsvDataSource)
 
 ### Spring Data Inspiration
 - **Declarative Configuration**: Data sources specified through annotations
@@ -79,6 +78,8 @@ class DataFrameConfiguration {
         }
     }
 }
+```
+
 ## 📖 Data Source Types
 
 ### CSV Data Sources
@@ -318,20 +319,6 @@ class DataService {
 }
 ```
 
-### From Legacy @DataSource
-
-**Before:**
-```kotlin
-@DataSource(csvFile = "data.csv", delimiter = ',')
-lateinit var data: DataFrame<*>
-```
-
-**After:**
-```kotlin
-@CsvDataSource(file = "data.csv", delimiter = ',')
-lateinit var data: DataFrame<*>
-```
-
 ## 🐛 Troubleshooting
 
 ### Common Issues
@@ -371,4 +358,4 @@ logging.level.org.jetbrains.kotlinx.dataframe.spring=DEBUG
 
 This module demonstrates the power of combining Spring's dependency injection with DataFrame's unified data processing API. The Spring Data-inspired approach provides a consistent, declarative way to handle multiple data sources while maintaining the flexibility and power of the DataFrame API.
 
-For more examples and advanced usage patterns, see the `examples/` directory in the module.
+For more examples and advanced usage patterns, see the `examples/` directory in the module.

dataframe-spring/src/main/kotlin/org/jetbrains/kotlinx/dataframe/spring/annotations/ArrowDataSource.kt

@@ -13,7 +13,7 @@ import org.jetbrains.kotlinx.dataframe.api.NullabilityOptions
  * @param format The file format to use (AUTO, IPC, FEATHER)
  * @param nullability How to handle nullable types (default: Infer)
  * 
- * @see DataFramePostProcessor
+ * @see org.jetbrains.kotlinx.dataframe.spring.DataFramePostProcessor
  */
 @Target(AnnotationTarget.FIELD, AnnotationTarget.PROPERTY)
 @Retention(AnnotationRetention.RUNTIME)
@@ -39,4 +39,4 @@ enum class ArrowFormat {
      * Arrow Feather format (.feather)
      */
     FEATHER
-}
+}

dataframe-spring/src/main/kotlin/org/jetbrains/kotlinx/dataframe/spring/annotations/CsvDataSource.kt

@@ -4,7 +4,7 @@ package org.jetbrains.kotlinx.dataframe.spring.annotations
  * Annotation to mark DataFrame fields/properties that should be automatically
  * populated with data from a CSV file using Spring's dependency injection.
  * 
- * This annotation is processed by [DataFramePostProcessor] during Spring
+ * This annotation is processed by [org.jetbrains.kotlinx.dataframe.spring.DataFramePostProcessor] during Spring
  * bean initialization.
  * 
  * @param file The path to the CSV file to read from

dataframe-spring/src/main/kotlin/org/jetbrains/kotlinx/dataframe/spring/annotations/JdbcDataSource.kt

@@ -4,7 +4,7 @@ package org.jetbrains.kotlinx.dataframe.spring.annotations
  * Annotation to mark DataFrame fields/properties that should be automatically
  * populated with data from a JDBC database using Spring's dependency injection.
  * 
- * This annotation is processed by [DataFramePostProcessor] during Spring
+ * This annotation is processed by [org.jetbrains.kotlinx.dataframe.spring.DataFramePostProcessor] during Spring
  * bean initialization.
  * 
  * @param url The JDBC URL to connect to (if not using existing connection)
@@ -15,7 +15,7 @@ package org.jetbrains.kotlinx.dataframe.spring.annotations
  * @param username Database username (if not using connectionBean)
  * @param password Database password (if not using connectionBean)
  * 
- * @see DataFramePostProcessor
+ * @see org.jetbrains.kotlinx.dataframe.spring.DataFramePostProcessor
  */
 @Target(AnnotationTarget.FIELD, AnnotationTarget.PROPERTY)
 @Retention(AnnotationRetention.RUNTIME)
@@ -28,4 +28,4 @@ annotation class JdbcDataSource(
     val limit: Int = -1,
     val username: String = "",
     val password: String = ""
-)
+)

dataframe-spring/src/main/kotlin/org/jetbrains/kotlinx/dataframe/spring/annotations/JsonDataSource.kt

@@ -7,15 +7,15 @@ import org.jetbrains.kotlinx.dataframe.io.JSON
  * Annotation to mark DataFrame fields/properties that should be automatically
  * populated with data from a JSON file using Spring's dependency injection.
  * 
- * This annotation is processed by [DataFramePostProcessor] during Spring
+ * This annotation is processed by [org.jetbrains.kotlinx.dataframe.spring.DataFramePostProcessor] during Spring
  * bean initialization.
  * 
  * @param file The path to the JSON file to read from
  * @param keyValuePaths List of JSON paths for key-value pair processing (comma-separated)
  * @param typeClashTactic How to handle type clashes when reading JSON (default: ARRAY_AND_VALUE_COLUMNS)
  * @param unifyNumbers Whether to unify numeric types (default: true)
  * 
- * @see DataFramePostProcessor
+ * @see org.jetbrains.kotlinx.dataframe.spring.DataFramePostProcessor
  */
 @Target(AnnotationTarget.FIELD, AnnotationTarget.PROPERTY)
 @Retention(AnnotationRetention.RUNTIME)