/*
* 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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* distributed under the License is distributed on an "AS IS" BASIS,
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* See the License for the specific language governing permissions and
* limitations under the License.
*
* Other licenses:
* -----------------------------------------------------------------------------
* Commercial licenses for this work are available. These replace the above
* ASL 2.0 and offer limited warranties, support, maintenance, and commercial
* database integrations.
*
* For more information, please visit: http://www.jooq.org/licenses
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package org.jooq.impl;
import static java.util.Arrays.asList;
import static org.jooq.Clause.ALTER_INDEX;
import static org.jooq.Clause.ALTER_INDEX_INDEX;
import static org.jooq.Clause.ALTER_INDEX_RENAME;
// ...
// ...
import static org.jooq.SQLDialect.CUBRID;
// ...
import static org.jooq.SQLDialect.DERBY;
import static org.jooq.SQLDialect.FIREBIRD;
// ...
// ...
import static org.jooq.impl.DSL.name;
import static org.jooq.impl.Keywords.K_ALTER_INDEX;
import static org.jooq.impl.Keywords.K_IF_EXISTS;
import static org.jooq.impl.Keywords.K_RENAME_INDEX;
import static org.jooq.impl.Keywords.K_RENAME_TO;
import static org.jooq.impl.Keywords.K_TO;
import org.jooq.AlterIndexFinalStep;
import org.jooq.AlterIndexStep;
import org.jooq.Clause;
import org.jooq.Configuration;
import org.jooq.Context;
import org.jooq.Name;
/**
* @author Lukas Eder
*/
final class AlterIndexImpl extends AbstractQuery implements
// Cascading interface implementations for ALTER INDEX behaviour
AlterIndexStep,
AlterIndexFinalStep {
/**
* Generated UID
*/
private static final long serialVersionUID = 8904572826501186329L;
private static final Clause[] CLAUSES = { ALTER_INDEX };
private final Name index;
private final boolean ifExists;
private Name renameTo;
AlterIndexImpl(Configuration configuration, Name index) {
this(configuration, index, false);
}
AlterIndexImpl(Configuration configuration, Name index, boolean ifExists) {
super(configuration);
this.index = index;
this.ifExists = ifExists;
}
// ------------------------------------------------------------------------
// XXX: DSL API
// ------------------------------------------------------------------------
@Override
public final AlterIndexImpl renameTo(Name newName) {
this.renameTo = newName;
return this;
}
@Override
public final AlterIndexImpl renameTo(String newName) {
return renameTo(name(newName));
}
// ------------------------------------------------------------------------
// XXX: QueryPart API
// ------------------------------------------------------------------------
private final boolean supportsIfExists(Context<?> ctx) {
return !asList(CUBRID, DERBY, FIREBIRD).contains(ctx.family());
}
@Override
public final void accept(Context<?> ctx) {
if (ifExists && !supportsIfExists(ctx)) {
Tools.executeImmediateIfExistsBegin(ctx, DDLStatementType.ALTER_INDEX, index);
accept0(ctx);
Tools.executeImmediateIfExistsEnd(ctx, DDLStatementType.ALTER_INDEX, index);
}
else {
accept0(ctx);
}
}
private final void accept0(Context<?> ctx) {
boolean renameIndex = asList().contains(ctx.family());
ctx.start(ALTER_INDEX_INDEX)
.visit(renameIndex ? K_RENAME_INDEX : K_ALTER_INDEX);
if (ifExists && supportsIfExists(ctx))
ctx.sql(' ').visit(K_IF_EXISTS);
ctx.sql(' ').visit(index)
.end(ALTER_INDEX_INDEX)
.formatIndentStart()
.formatSeparator();
if (renameTo != null) {
boolean qualify = ctx.qualify();
ctx.start(ALTER_INDEX_RENAME)
.qualify(false)
.visit(renameIndex ? K_TO : K_RENAME_TO).sql(' ').visit(renameTo)
.qualify(qualify)
.end(ALTER_INDEX_RENAME);
}
ctx.formatIndentEnd();
}
@Override
public final Clause[] clauses(Context<?> ctx) {
return CLAUSES;
}
}