diff --git a/src/org/redkale/convert/ArrayDecoder.java b/src/org/redkale/convert/ArrayDecoder.java
index 8f57d13a1..e4d7bfeea 100644
--- a/src/org/redkale/convert/ArrayDecoder.java
+++ b/src/org/redkale/convert/ArrayDecoder.java
@@ -101,4 +101,12 @@ public final class ArrayDecoder<T> implements Decodeable<Reader, T[]> {
         return type;
     }
 
+    public Type getComponentType() {
+        return componentType;
+    }
+
+    public Decodeable<Reader, T> getDecoder() {
+        return decoder;
+    }
+
 }
diff --git a/src/org/redkale/convert/ArrayEncoder.java b/src/org/redkale/convert/ArrayEncoder.java
index 5e0b3124b..4cff3f93c 100644
--- a/src/org/redkale/convert/ArrayEncoder.java
+++ b/src/org/redkale/convert/ArrayEncoder.java
@@ -97,4 +97,13 @@ public final class ArrayEncoder<T> implements Encodeable<Writer, T[]> {
     public Type getType() {
         return type;
     }
+
+    public Type getComponentType() {
+        return componentType;
+    }
+
+    public Encodeable<Writer, Object> getEncoder() {
+        return encoder;
+    }
+    
 }
diff --git a/src/org/redkale/convert/CollectionDecoder.java b/src/org/redkale/convert/CollectionDecoder.java
index 2ff8efb49..f2358e4fd 100644
--- a/src/org/redkale/convert/CollectionDecoder.java
+++ b/src/org/redkale/convert/CollectionDecoder.java
@@ -95,4 +95,12 @@ public final class CollectionDecoder<T> implements Decodeable<Reader, Collection
         return type;
     }
 
+    public Type getComponentType() {
+        return componentType;
+    }
+
+    public Decodeable<Reader, T> getDecoder() {
+        return decoder;
+    }
+
 }
diff --git a/src/org/redkale/convert/CollectionEncoder.java b/src/org/redkale/convert/CollectionEncoder.java
index 6313f246c..d412b7c28 100644
--- a/src/org/redkale/convert/CollectionEncoder.java
+++ b/src/org/redkale/convert/CollectionEncoder.java
@@ -86,4 +86,9 @@ public final class CollectionEncoder<T> implements Encodeable<Writer, Collection
     public Type getType() {
         return type;
     }
+
+    public Encodeable<Writer, Object> getEncoder() {
+        return encoder;
+    }
+
 }
diff --git a/src/org/redkale/convert/MapDecoder.java b/src/org/redkale/convert/MapDecoder.java
index 29b1343e6..5e54bbc00 100644
--- a/src/org/redkale/convert/MapDecoder.java
+++ b/src/org/redkale/convert/MapDecoder.java
@@ -114,4 +114,20 @@ public final class MapDecoder<K, V> implements Decodeable<Reader, Map<K, V>> {
         return this.type;
     }
 
+    public Type getKeyType() {
+        return keyType;
+    }
+
+    public Type getValueType() {
+        return valueType;
+    }
+
+    public Decodeable<Reader, K> getKeyDecoder() {
+        return keyDecoder;
+    }
+
+    public Decodeable<Reader, V> getValueDecoder() {
+        return valueDecoder;
+    }
+
 }
diff --git a/src/org/redkale/convert/MapEncoder.java b/src/org/redkale/convert/MapEncoder.java
index d7be51a38..befb21f2a 100644
--- a/src/org/redkale/convert/MapEncoder.java
+++ b/src/org/redkale/convert/MapEncoder.java
@@ -86,4 +86,13 @@ public final class MapEncoder<K, V> implements Encodeable<Writer, Map<K, V>> {
     public Type getType() {
         return type;
     }
+
+    public Encodeable<Writer, K> getKeyencoder() {
+        return keyencoder;
+    }
+
+    public Encodeable<Writer, V> getValencoder() {
+        return valencoder;
+    }
+    
 }
diff --git a/src/org/redkale/convert/ObjectDecoder.java b/src/org/redkale/convert/ObjectDecoder.java
index 639c1c453..84744eb47 100644
--- a/src/org/redkale/convert/ObjectDecoder.java
+++ b/src/org/redkale/convert/ObjectDecoder.java
@@ -259,6 +259,10 @@ public final class ObjectDecoder<R extends Reader, T> implements Decodeable<R, T
         return this.type;
     }
 
+    public DeMember[] getMembers() {
+        return Arrays.copyOf(members, members.length);
+    }
+
     @Override
     public String toString() {
         return "ObjectDecoder{" + "type=" + type + ", members=" + Arrays.toString(members) + '}';
diff --git a/src/org/redkale/convert/ObjectEncoder.java b/src/org/redkale/convert/ObjectEncoder.java
index 30ca1a21b..e1fd0c94b 100644
--- a/src/org/redkale/convert/ObjectEncoder.java
+++ b/src/org/redkale/convert/ObjectEncoder.java
@@ -157,6 +157,10 @@ public final class ObjectEncoder<W extends Writer, T> implements Encodeable<W, T
         return this.type;
     }
 
+    public EnMember[] getMembers() {
+        return Arrays.copyOf(members, members.length);
+    }
+
     @Override
     public String toString() {
         return "ObjectEncoder{" + "type=" + type + ", members=" + Arrays.toString(members) + '}';
diff --git a/src/org/redkale/convert/StreamDecoder.java b/src/org/redkale/convert/StreamDecoder.java
index 5e1e35d62..5a6a5051f 100644
--- a/src/org/redkale/convert/StreamDecoder.java
+++ b/src/org/redkale/convert/StreamDecoder.java
@@ -91,4 +91,12 @@ public final class StreamDecoder<T> implements Decodeable<Reader, Stream<T>> {
         return type;
     }
 
+    public Type getComponentType() {
+        return componentType;
+    }
+
+    public Decodeable<Reader, T> getDecoder() {
+        return decoder;
+    }
+
 }
diff --git a/src/org/redkale/convert/StreamEncoder.java b/src/org/redkale/convert/StreamEncoder.java
index 553d35e63..0d4d18770 100644
--- a/src/org/redkale/convert/StreamEncoder.java
+++ b/src/org/redkale/convert/StreamEncoder.java
@@ -87,4 +87,9 @@ public final class StreamEncoder<T> implements Encodeable<Writer, Stream<T>> {
     public Type getType() {
         return type;
     }
+
+    public Encodeable<Writer, Object> getEncoder() {
+        return encoder;
+    }
+    
 }