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/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or .
*/
package org.hibernate.bytecode.internal.javassist;
/**
* The interface defining how interception of a field should be handled.
*
* @author Muga Nishizawa
*/
@SuppressWarnings("UnusedDeclaration")
public interface FieldHandler {
/**
* Called to handle writing an int value to a given field.
*
* @param obj The object instance on which the write was invoked
* @param name The name of the field being written
* @param oldValue The old field value
* @param newValue The new field value.
*
* @return The new value, typically the same as the newValue argument
*/
int writeInt(Object obj, String name, int oldValue, int newValue);
/**
* Called to handle writing a char value to a given field.
*
* @param obj The object instance on which the write was invoked
* @param name The name of the field being written
* @param oldValue The old field value
* @param newValue The new field value.
*
* @return The new value, typically the same as the newValue argument
*/
char writeChar(Object obj, String name, char oldValue, char newValue);
/**
* Called to handle writing a byte value to a given field.
*
* @param obj The object instance on which the write was invoked
* @param name The name of the field being written
* @param oldValue The old field value
* @param newValue The new field value.
*
* @return The new value, typically the same as the newValue argument
*/
byte writeByte(Object obj, String name, byte oldValue, byte newValue);
/**
* Called to handle writing a boolean value to a given field.
*
* @param obj The object instance on which the write was invoked
* @param name The name of the field being written
* @param oldValue The old field value
* @param newValue The new field value.
*
* @return The new value, typically the same as the newValue argument
*/
boolean writeBoolean(Object obj, String name, boolean oldValue, boolean newValue);
/**
* Called to handle writing a short value to a given field.
*
* @param obj The object instance on which the write was invoked
* @param name The name of the field being written
* @param oldValue The old field value
* @param newValue The new field value.
*
* @return The new value, typically the same as the newValue argument
*/
short writeShort(Object obj, String name, short oldValue, short newValue);
/**
* Called to handle writing a float value to a given field.
*
* @param obj The object instance on which the write was invoked
* @param name The name of the field being written
* @param oldValue The old field value
* @param newValue The new field value.
*
* @return The new value, typically the same as the newValue argument
*/
float writeFloat(Object obj, String name, float oldValue, float newValue);
/**
* Called to handle writing a double value to a given field.
*
* @param obj The object instance on which the write was invoked
* @param name The name of the field being written
* @param oldValue The old field value
* @param newValue The new field value.
*
* @return The new value, typically the same as the newValue argument
*/
double writeDouble(Object obj, String name, double oldValue, double newValue);
/**
* Called to handle writing a long value to a given field.
*
* @param obj The object instance on which the write was invoked
* @param name The name of the field being written
* @param oldValue The old field value
* @param newValue The new field value.
*
* @return The new value, typically the same as the newValue argument
*/
long writeLong(Object obj, String name, long oldValue, long newValue);
/**
* Called to handle writing an Object value to a given field.
*
* @param obj The object instance on which the write was invoked
* @param name The name of the field being written
* @param oldValue The old field value
* @param newValue The new field value.
*
* @return The new value, typically the same as the newValue argument; may be different for entity references
*/
Object writeObject(Object obj, String name, Object oldValue, Object newValue);
/**
* Called to handle reading an int value to a given field.
*
* @param obj The object instance on which the write was invoked
* @param name The name of the field being written
* @param oldValue The old field value
*
* @return The field value
*/
int readInt(Object obj, String name, int oldValue);
/**
* Called to handle reading a char value to a given field.
*
* @param obj The object instance on which the write was invoked
* @param name The name of the field being written
* @param oldValue The old field value
*
* @return The field value
*/
char readChar(Object obj, String name, char oldValue);
/**
* Called to handle reading a byte value to a given field.
*
* @param obj The object instance on which the write was invoked
* @param name The name of the field being written
* @param oldValue The old field value
*
* @return The field value
*/
byte readByte(Object obj, String name, byte oldValue);
/**
* Called to handle reading a boolean value to a given field.
*
* @param obj The object instance on which the write was invoked
* @param name The name of the field being written
* @param oldValue The old field value
*
* @return The field value
*/
boolean readBoolean(Object obj, String name, boolean oldValue);
/**
* Called to handle reading a short value to a given field.
*
* @param obj The object instance on which the write was invoked
* @param name The name of the field being written
* @param oldValue The old field value
*
* @return The field value
*/
short readShort(Object obj, String name, short oldValue);
/**
* Called to handle reading a float value to a given field.
*
* @param obj The object instance on which the write was invoked
* @param name The name of the field being written
* @param oldValue The old field value
*
* @return The field value
*/
float readFloat(Object obj, String name, float oldValue);
/**
* Called to handle reading a double value to a given field.
*
* @param obj The object instance on which the write was invoked
* @param name The name of the field being written
* @param oldValue The old field value
*
* @return The field value
*/
double readDouble(Object obj, String name, double oldValue);
/**
* Called to handle reading a long value to a given field.
*
* @param obj The object instance on which the write was invoked
* @param name The name of the field being written
* @param oldValue The old field value
*
* @return The field value
*/
long readLong(Object obj, String name, long oldValue);
/**
* Called to handle reading an Object value to a given field.
*
* @param obj The object instance on which the write was invoked
* @param name The name of the field being written
* @param oldValue The old field value
*
* @return The field value
*/
Object readObject(Object obj, String name, Object oldValue);
}
