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/*
* Copyright (c) 2021 AtLarge Research
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package org.opendc.trace
import java.util.*
/**
* A column in a trace table.
*
* @param name The universal name of this column.
*/
public class TableColumn<out T>(public val name: String, type: Class<T>) {
/**
* The type of the column.
*/
public val type: Class<*> = type
/**
* Determine whether the type of the column is a subtype of [column].
*/
public fun isAssignableTo(column: TableColumn<*>): Boolean {
return name == column.name && type.isAssignableFrom(column.type)
}
/**
* Compute a hash code for this column.
*/
public override fun hashCode(): Int = Objects.hash(name, type)
/**
* Determine whether this column is equal to [other].
*/
public override fun equals(other: Any?): Boolean {
// Fast-path: reference equality
if (this === other) {
return true
} else if (other == null || other !is TableColumn<*>) {
return false
}
return name == other.name && type == other.type
}
/**
* Return a string representation of this column.
*/
public override fun toString(): String = "TableColumn[$name,$type]"
}
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