com.arcadeanalytics.provider.rdbms.model.dbschema.Attribute Maven / Gradle / Ivy
package com.arcadeanalytics.provider.rdbms.model.dbschema;
/*-
* #%L
* Arcade Connectors
* %%
* Copyright (C) 2018 - 2020 ArcadeData
* %%
* 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.
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*/
/**
* It represents an attribute of an entity.
*
* @author Gabriele Ponzi
*/
public class Attribute implements Comparable {
private final String name;
private final String dataType;
private final Entity belongingEntity;
private int ordinalPosition;
public Attribute(String name, int ordinalPosition, String dataType, Entity belongingEntity) {
this.name = name;
this.ordinalPosition = ordinalPosition;
this.dataType = dataType;
this.belongingEntity = belongingEntity;
}
public String getName() {
return this.name;
}
public int getOrdinalPosition() {
return this.ordinalPosition;
}
//FIXME: why the hell it should be updated after creation?
public void setOrdinalPosition(int ordinalPosition) {
this.ordinalPosition = ordinalPosition;
}
public String getDataType() {
return this.dataType;
}
public Entity getBelongingEntity() {
return this.belongingEntity;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((dataType == null) ? 0 : dataType.hashCode());
result = prime * result + ((name == null) ? 0 : name.hashCode());
return result;
}
public boolean equals(Object o) {
Attribute that = (Attribute) o;
if (this.name.equals(that.getName()) && this.dataType.equals(that.getDataType())) {
return true;
} else
return false;
}
@Override
public int compareTo(Attribute attributeToCompare) {
if (this.ordinalPosition > attributeToCompare.getOrdinalPosition())
return 0;
else if (this.ordinalPosition < attributeToCompare.getOrdinalPosition())
return -1;
else
return 1;
}
public String toString() {
String s = "";
s += this.ordinalPosition + ": " + this.name + " ( " + this.dataType + " )";
return s;
}
}