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package com.realcomp.prime.schema;

import com.realcomp.prime.schema.xml.RelationalSchemaConverter;
import com.thoughtworks.xstream.annotations.XStreamAlias;
import com.thoughtworks.xstream.annotations.XStreamConverter;
import java.util.Collection;
import java.util.HashSet;
import java.util.Set;


@XStreamAlias("relational-schema")
@XStreamConverter(RelationalSchemaConverter.class)
public class RelationalSchema{

    protected String name;
    protected String version;
    protected Set tables;

    public String getName(){
        return name;
    }

    public void setName(String name){
        if (name == null){
            throw new IllegalArgumentException("name is null");
        }
        this.name = name;
    }

    public String getVersion(){
        return version;
    }

    public void setVersion(String version){
        this.version = version;
    }

    public Set
 getTables(){
        return tables;
    }

    public void setTables(Collection
 tables) throws SchemaException{
        if (tables == null){
            this.tables = null;
        }
        else{
            if (this.tables != null){
                this.tables.clear();
            }
            for (Table t : tables){
                addTable(t);
            }
        }
    }

    public void addTable(Table table) throws SchemaException{
        if (table == null){
            throw new IllegalArgumentException("table is null");
        }

        if (tables == null){
            tables = new HashSet
();
        }

        if (!tables.add(table)){
            throw new SchemaException(
                    String.format(
                    "A table with name [%s] is already defined in schema [%s].",
                    name,
                    this.toString()));
        }
    }

    @Override
    public String toString(){
        StringBuilder s = new StringBuilder(name);
        if (version != null && !version.isEmpty()){
            s.append(" (").append(version).append(")");
        }
        return s.toString();
    }

    @Override
    public boolean equals(Object obj){
        if (obj == null){
            return false;
        }
        if (getClass() != obj.getClass()){
            return false;
        }
        final RelationalSchema other = (RelationalSchema) obj;
        if ((this.name == null) ? (other.name != null) : !this.name.equals(other.name)){
            return false;
        }
        if ((this.version == null) ? (other.version != null) : !this.version.equals(other.version)){
            return false;
        }
        if (this.tables != other.tables && (this.tables == null || !this.tables.equals(other.tables))){
            return false;
        }
        return true;
    }

    @Override
    public int hashCode(){
        int hash = 7;
        hash = 89 * hash + (this.name != null ? this.name.hashCode() : 0);
        hash = 89 * hash + (this.version != null ? this.version.hashCode() : 0);
        hash = 89 * hash + (this.tables != null ? this.tables.hashCode() : 0);
        return hash;
    }
}



            

            


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