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SQL support for Querydsl

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/*
 * Copyright (c) 2010 Mysema Ltd.
 * All rights reserved.
 *
 */
package com.querydsl.sql.ddl;

import com.querydsl.sql.SQLTemplates;
import java.util.List;

/**
 * ForeignKeyBuilder is part of the fluent interface of CreateTableClause
 *
 * @author tiwe
 */
public class ForeignKeyBuilder {

  private final List foreignKeys;

  private final CreateTableClause clause;

  private final String name;

  private final String[] foreignColumns;

  private final SQLTemplates templates;

  public ForeignKeyBuilder(
      CreateTableClause clause,
      SQLTemplates templates,
      List foreignKeys,
      String name,
      String[] columns) {
    this.clause = clause;
    this.templates = templates;
    this.foreignKeys = foreignKeys;
    this.name = name;
    this.foreignColumns = columns.clone();
  }

  public CreateTableClause references(String table, String... parentColumns) {
    ForeignKeyData foreignKey = new ForeignKeyData(name, templates.quoteIdentifier(table));
    for (int i = 0; i < parentColumns.length; i++) {
      foreignKey.add(
          templates.quoteIdentifier(foreignColumns[i]),
          templates.quoteIdentifier(parentColumns[i]));
    }
    foreignKeys.add(foreignKey);
    return clause;
  }
}