
org.skife.jdbi.v2.sqlobject.customizers.MaxRows Maven / Gradle / Ivy
/*
* Copyright 2004-2014 Brian McCallister
* Copyright 2010-2014 Ning, Inc.
* Copyright 2014-2020 Groupon, Inc
* Copyright 2020-2020 Equinix, Inc
* Copyright 2014-2020 The Billing Project, LLC
*
* The Billing Project licenses this file to you 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:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
package org.skife.jdbi.v2.sqlobject.customizers;
import org.skife.jdbi.v2.Query;
import org.skife.jdbi.v2.SQLStatement;
import org.skife.jdbi.v2.sqlobject.SqlStatementCustomizer;
import org.skife.jdbi.v2.sqlobject.SqlStatementCustomizerFactory;
import org.skife.jdbi.v2.sqlobject.SqlStatementCustomizingAnnotation;
import java.lang.annotation.Annotation;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import java.lang.reflect.Method;
import java.sql.SQLException;
/**
* Used to specify the maximum numb er of rows to return on a result set. Passes through to
* setMaxRows on the JDBC prepared statement.
*/
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.METHOD, ElementType.PARAMETER})
@SqlStatementCustomizingAnnotation(MaxRows.Factory.class)
public @interface MaxRows
{
/**
* The max number of rows to return from the query.
*/
int value();
static class Factory implements SqlStatementCustomizerFactory
{
@Override
public SqlStatementCustomizer createForMethod(Annotation annotation, Class sqlObjectType, Method method)
{
final int va = ((MaxRows)annotation).value();
return new SqlStatementCustomizer()
{
@Override
public void apply(SQLStatement q) throws SQLException
{
assert q instanceof Query;
((Query)q).setMaxRows(va);
}
};
}
@Override
public SqlStatementCustomizer createForType(Annotation annotation, Class sqlObjectType)
{
final int va = ((MaxRows)annotation).value();
return new SqlStatementCustomizer()
{
@Override
public void apply(SQLStatement q) throws SQLException
{
assert q instanceof Query;
((Query)q).setMaxRows(va);
}
};
}
@Override
public SqlStatementCustomizer createForParameter(Annotation annotation, Class sqlObjectType, Method method, Object arg)
{
final Integer va = (Integer) arg;
return new SqlStatementCustomizer()
{
@Override
public void apply(SQLStatement q) throws SQLException
{
assert q instanceof Query;
((Query)q).setMaxRows(va);
}
};
}
}
}
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