org.primefaces.model.filter.ComparableFilterConstraint Maven / Gradle / Ivy
/*
* The MIT License
*
* Copyright (c) 2009-2023 PrimeTek Informatics
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
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* 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
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package org.primefaces.model.filter;
import javax.faces.context.FacesContext;
import java.util.Locale;
import java.util.function.BiPredicate;
public abstract class ComparableFilterConstraint implements FilterConstraint {
@Override
public boolean isMatching(FacesContext ctxt, Object value, Object filter, Locale locale) {
if (value == null || filter == null) {
return false;
}
assertComparable(value);
assertAssignable(filter, value);
return getPredicate().test((Comparable) value, (Comparable) filter);
}
protected abstract BiPredicate getPredicate();
static void assertComparable(Object value) {
if (!(value instanceof Comparable)) {
throw new IllegalArgumentException("Value should be a java.lang.Comparable");
}
}
static void assertAssignable(Object filter, Object value) {
if (!filter.getClass().isAssignableFrom(value.getClass())) {
throw new IllegalArgumentException("Filter cannot be casted to value type. Forgot to add a converter?");
}
}
}