com.arcadedb.query.select.SelectWhereBaseBlock Maven / Gradle / Ivy
package com.arcadedb.query.select;/*
* Copyright © 2021-present Arcade Data Ltd ([email protected])
*
* 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
*
* 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.
*/
/**
* Native Query engine is a simple query engine that covers most of the classic use cases, such as the retrieval of records
* with a where condition. It could be much faster than the same SQL query because it does not use any parser and it is very
* JIT friendly. Future versions could translate the query into bytecode to have an even faster execution.
*
* @author Luca Garulli ([email protected])
*/
public abstract class SelectWhereBaseBlock {
protected final Select select;
public SelectWhereBaseBlock(final Select select) {
this.select = select;
}
protected void setParameter(final String parameterName) {
select.checkNotCompiled();
select.propertyValue = new SelectParameterValue(select, parameterName);
}
protected void setProperty(final String name) {
select.checkNotCompiled();
if (select.property != null)
throw new IllegalArgumentException("Property has already been set");
if (select.state != Select.STATE.WHERE)
throw new IllegalArgumentException("No context was provided for the parameter");
select.property = new SelectPropertyValue(name);
}
}
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