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Gemini is a web framework created by TechEmpower.
/*******************************************************************************
* Copyright (c) 2018, TechEmpower, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name TechEmpower, Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL TECHEMPOWER, INC. BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*******************************************************************************/
package com.techempower.data.mapping;
import java.lang.reflect.*;
import java.util.*;
/**
* Used by {@link com.techempower.data.EntityGroup}. Maps a Method to a database
* field name.
*/
public class DataFieldToMethodMap
extends DataFieldToObjectEntityMap
{
//
// Enumerations.
//
public enum Type {
Unknown,
BooleanPrimitive,
BytePrimitive,
CharPrimitive,
DoublePrimitive,
FloatPrimitive,
IntPrimitive,
LongPrimitive,
ShortPrimitive,
String,
IntegerObject,
ByteObject,
LongObject,
ShortObject,
BooleanObject,
CharacterObject,
DoubleObject,
FloatObject,
Enum,
Date,
Calendar
}
//
// Variables.
//
private final Method method;
private final int methodIndex;
private final Class javaFieldType;
private final int columnIndex;
private final boolean primitive;
private final Type type;
//
// Methods.
//
/**
* Constructor.
*/
public DataFieldToMethodMap(Method method, String columnName,
int columnIndex, int fieldType, int methodIndex)
{
super(columnName, fieldType);
this.method = method;
this.methodIndex = methodIndex;
this.columnIndex = columnIndex;
if (method.getParameterTypes().length > 0)
{
this.javaFieldType = method.getParameterTypes()[0];
// Translate the Java field type to our Type enumeration.
if (this.javaFieldType.isPrimitive())
{
this.primitive = true;
if (this.javaFieldType == boolean.class)
{
this.type = Type.BooleanPrimitive;
}
else if (this.javaFieldType == byte.class)
{
this.type = Type.BytePrimitive;
}
else if (this.javaFieldType == char.class)
{
this.type = Type.CharPrimitive;
}
else if (this.javaFieldType == double.class)
{
this.type = Type.DoublePrimitive;
}
else if (this.javaFieldType == float.class)
{
this.type = Type.FloatPrimitive;
}
else if (this.javaFieldType == int.class)
{
this.type = Type.IntPrimitive;
}
else if (this.javaFieldType == long.class)
{
this.type = Type.LongPrimitive;
}
else if (this.javaFieldType == short.class)
{
this.type = Type.ShortPrimitive;
}
else
{
throw new AssertionError("Unknown primitive type: " + this.javaFieldType.getName());
}
}
else
{
this.primitive = false;
if (this.javaFieldType == String.class)
{
this.type = Type.String;
}
else if (this.javaFieldType == Integer.class)
{
this.type = Type.IntegerObject;
}
else if (this.javaFieldType == Long.class)
{
this.type = Type.LongObject;
}
else if (this.javaFieldType == Short.class)
{
this.type = Type.ShortObject;
}
else if (this.javaFieldType == Boolean.class)
{
this.type = Type.BooleanObject;
}
else if (this.javaFieldType == Byte.class)
{
this.type = Type.ByteObject;
}
else if (this.javaFieldType == Character.class)
{
this.type = Type.CharacterObject;
}
else if (this.javaFieldType == Double.class)
{
this.type = Type.DoubleObject;
}
else if (this.javaFieldType == Float.class)
{
this.type = Type.FloatObject;
}
else if (this.javaFieldType.isEnum())
{
this.type = Type.Enum;
}
else if (this.javaFieldType == Date.class)
{
this.type = Type.Date;
}
else if (this.javaFieldType.isAssignableFrom(java.util.Calendar.class))
{
this.type = Type.Calendar;
}
// Unknown type.
else
{
this.type = Type.Unknown;
}
}
}
else
{
// Method signature not available.
this.javaFieldType = null;
this.type = Type.Unknown;
this.primitive = true;
}
}
/**
* Gets the method.
*/
public Method getMethod()
{
return this.method;
}
/**
* Gets the method index.
*/
public int getMethodIndex()
{
return this.methodIndex;
}
/**
* Gets the column index.
*/
public int getColumnIndex()
{
return this.columnIndex;
}
/**
* Gets the Java field type.
*/
public Class getJavaFieldType()
{
return this.javaFieldType;
}
/**
* Is the associated Java field type a primitive?
*/
public boolean isPrimitive()
{
return this.primitive;
}
/**
* Return our "Type" classification for use in deserializing objects from
* a database.
*/
public Type getType()
{
return this.type;
}
/**
* Basic toString.
*/
@Override
public String toString()
{
return "DFTMM [" + getFieldName() + "; " + getFieldType() + "]";
}
@Override
public boolean equals(Object o)
{
if (!(o instanceof DataFieldToMethodMap))
{
return false;
}
return ((DataFieldToMethodMap)o).getFieldName().equals(this.getFieldName())
&& ((DataFieldToMethodMap)o).method.equals(this.method);
}
@Override
public int hashCode()
{
return super.hashCode();
}
} // End DataFieldToMethodMap.