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/*
* Type.java
*
* Created on March 8, 2000
*/
package com.sun.jdo.spi.persistence.support.sqlstore.query.util.type;
import com.sun.jdo.spi.persistence.utility.FieldTypeEnumeration;
/**
*
* @author Michael Bouschen
* @version 0.1
*/
public abstract class Type
{
/**
* The name of the type represented by this object.
*/
protected String name;
/**
* The corresponding class object.
*/
protected Class clazz;
/**
* The FieldTypeEnumeration constant for this Type.
*/
protected int enumType;
/**
* Creates a new Type object with the specified name.
* @param name name of the type represented by this
* @param clazz the class object for this type
*/
public Type(String name, Class clazz)
{
this(name, clazz, FieldTypeEnumeration.NOT_ENUMERATED);
}
/**
* Creates a new Type object with the specified name.
* @param name name of the type represented by this
* @param clazz the class object for this type
* @param enumType the FieldTypeEnumeration value for this type
*/
public Type(String name, Class clazz, int enumType)
{
this.name = name;
this.clazz = clazz;
this.enumType = enumType;
}
/**
* Returns the name of the type.
*/
public String getName()
{
return name;
}
/**
* Returns the corresponding class object.
*/
public Class getJavaClass() {
return this.clazz;
}
/**
* Checks type compatibility.
* @param type the type this is checked with.
* @return true if this is compatible with type;
* false otherwise.
*/
public abstract boolean isCompatibleWith(Type type);
/**
* Returns whether this represents a type with an
* defined order.
* @return true if an order is defined for this;
* false otherwise.
*/
public boolean isOrderable()
{
return false;
}
/**
* Returns the FieldTypeEnumeration value for this type.
*/
public int getEnumType()
{
return enumType;
}
/**
* Representation of this type as a string.
*/
public String toString()
{
return getName();
}
/**
* Indicates whether some other object is "equal to" this one.
*
* Two types are equal if their names are equal.
*/
public boolean equals(Object obj)
{
if (obj == this)
return true;
else if (obj instanceof Type)
return this.name.equals(((Type)obj).name);
else
return false;
}
}
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