nz.co.gregs.dbvolution.expressions.InExpression Maven / Gradle / Ivy
/*
* Copyright 2018 gregorygraham.
*
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package nz.co.gregs.dbvolution.expressions;
import java.util.ArrayList;
import java.util.List;
import nz.co.gregs.dbvolution.datatypes.QueryableDatatype;
import nz.co.gregs.dbvolution.results.AnyResult;
import nz.co.gregs.dbvolution.results.InResult;
/**
* A value class that covers most datatypes.
*
*
* This class brings together the related classes used to work with database
* values: the base type, the result type, and the QueryableDatatype.
*
*
*
*
* @author gregorygraham
* @param a base type similar to Integer or String that is ultimately what
* you want to work with.
* @param the *Result type that will allow you to make expressions for
* working with the base type.
* @param the QDT that will store and retrieve the base from the database.
*/
public abstract class InExpression, D extends QueryableDatatype> extends EqualExpression {
/**
*
* @param only
*/
protected InExpression(R only) {
super(only);
}
protected InExpression() {
super();
}
/**
*
* @param only
*/
protected InExpression(AnyResult only) {
super(only);
}
abstract public BooleanExpression isIn(R... value);
@SuppressWarnings("unchecked")
public BooleanExpression isIn(B... possibleValues) {
List exps = new ArrayList<>(0);
for (B possibleValue : possibleValues) {
exps.add(this.expression(possibleValue));
}
return this.isIn((R[]) exps.toArray());
}
@SuppressWarnings("unchecked")
public BooleanExpression isIn(D... possibleValues) {
List exps = new ArrayList<>(0);
for (D possibleValue : possibleValues) {
exps.add(this.expression(possibleValue));
}
return this.isIn((R[]) exps.toArray());
}
}