io.apicurio.datamodels.cmd.ot.OtCommand Maven / Gradle / Ivy
/*
* Copyright 2019 Red Hat
*
* 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 io.apicurio.datamodels.cmd.ot;
import io.apicurio.datamodels.cmd.ICommand;
import io.apicurio.datamodels.core.models.Document;
/**
* @author [email protected]
*/
public class OtCommand {
public String author;
public long contentVersion;
public ICommand command;
public boolean local;
public boolean reverted;
/**
* Executes the command against the given document. Skips execution if the command
* has been reverted/undone.
* @param document
*/
public void execute(Document document) {
if (!this.reverted) {
this.command.execute(document);
}
}
/**
* Invokes 'undo' on the underlying ICommand but only if it hasn't already been reverted.
* Any command already reverted will simply be skipped.
* @param document
*/
public void undo(Document document) {
if (this.reverted) {
//console.info("Skipped undo of CV: ", this);
} else {
this.command.undo(document);
this.reverted = true;
}
}
/**
* Invokes 'redo' on the underlying ICommand but only if it hasn't already been reverted.
* Any command already reverted will simply be skipped.
* @param document
*/
public void redo(Document document) {
if (!this.reverted) {
//console.info("Skipped redo of CV: ", this);
} else {
this.command.execute(document);
this.reverted = false;
}
}
}