/*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
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* limitations under the License.
*
* Other licenses:
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* ASL 2.0 and offer limited warranties, support, maintenance, and commercial
* database integrations.
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* For more information, please visit: http://www.jooq.org/licenses
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package org.jooq.impl;
import static org.jooq.Clause.CONDITION;
import static org.jooq.Clause.CONDITION_IS_NOT_NULL;
import static org.jooq.Clause.CONDITION_IS_NULL;
import static org.jooq.impl.Keywords.K_IS_NOT_NULL;
import static org.jooq.impl.Keywords.K_IS_NULL;
import org.jooq.Clause;
import org.jooq.Context;
import org.jooq.Field;
/**
* @author Lukas Eder
*/
final class IsNull extends AbstractCondition {
private static final long serialVersionUID = -747240442279619486L;
private static final Clause[] CLAUSES_NULL = { CONDITION, CONDITION_IS_NULL };
private static final Clause[] CLAUSES_NULL_NOT = { CONDITION, CONDITION_IS_NOT_NULL };
private final Field<?> field;
private final boolean isNull;
IsNull(Field<?> field, boolean isNull) {
this.field = field;
this.isNull = isNull;
}
@Override
public final void accept(Context<?> ctx) {
ctx.visit(field).sql(' ').visit(isNull ? K_IS_NULL : K_IS_NOT_NULL);
}
@Override
public final Clause[] clauses(Context<?> ctx) {
return isNull ? CLAUSES_NULL : CLAUSES_NULL_NOT;
}
}