com.blazebit.persistence.impl.keyset.AbstractKeysetBuilderEndedListener Maven / Gradle / Ivy
/*
* Copyright 2014 - 2020 Blazebit.
*
* 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.
*/
package com.blazebit.persistence.impl.keyset;
import java.util.Map;
import com.blazebit.persistence.impl.BuilderChainingException;
/**
*
* @author Christian Beikov
* @since 1.0.0
*/
public class AbstractKeysetBuilderEndedListener implements KeysetBuilderEndedListener {
private KeysetBuilderImpl currentBuilder;
private KeysetLink keysetLink;
public void verifyBuilderEnded() {
if (currentBuilder != null) {
throw new BuilderChainingException("A builder was not ended properly.");
}
}
public KeysetBuilderImpl startBuilder(KeysetBuilderImpl builder) {
if (currentBuilder != null) {
throw new BuilderChainingException("There was an attempt to start a builder but a previous builder was not ended.");
}
currentBuilder = builder;
return builder;
}
@Override
public void onBuilderEnded(KeysetBuilderImpl builder) {
if (currentBuilder == null) {
throw new BuilderChainingException("There was an attempt to end a builder that was not started or already closed.");
}
keysetLink = createLink(builder);
currentBuilder = null;
}
private KeysetLink createLink(KeysetBuilderImpl builder) {
Map keysetValues = builder.getKeysetValues();
KeysetMode mode = builder.getMode();
return new LazyKeysetLink(keysetValues, mode);
}
public KeysetLink getKeysetLink() {
return keysetLink;
}
public void setKeysetLink(KeysetLink keysetLink) {
this.keysetLink = keysetLink;
}
}