Example usage for org.hibernate.mapping Table hasPrimaryKey

Introduction

In this page you can find the example usage for org.hibernate.mapping Table hasPrimaryKey.

Prototype

public boolean hasPrimaryKey() 

Source Link

Usage

From source file:com.xpn.xwiki.store.migration.hibernate.R40000XWIKI6990DataMigration.java

License:Open Source License

/**
 * Create liquibase change log to modify the column type to BIGINT.
 * If the database is MSSQL, drop PK constraints and indexes during operation.
 * /*ww  w  .  ja v  a2  s  . c  o m*/
 * @param sb append the result into this string builder
 * @param table the table name
 * @param column the column name
 */
private void appendDataTypeChangeLog(StringBuilder sb, Table table, String column) {
    String tableName = table.getName();

    sb.append("  <changeSet id=\"R").append(this.getVersion().getVersion()).append('-')
            .append(Util.getHash(String.format("modifyDataType-%s-%s", table, column)))
            .append("\" author=\"xwiki\">\n").append("    <comment>Upgrade identifier [").append(column)
            .append("] from table [").append(tableName).append("] to BIGINT type</comment >\n");

    // MS-SQL require that primary key constraints and all indexes related to the changed column be dropped before
    // changing the column type.
    if (this.isMSSQL) {
        if (table.hasPrimaryKey()) {
            appendDropPrimaryKey(sb, table);
        }

        // We drop all index related to the table, this is overkill, but does not hurt
        for (@SuppressWarnings("unchecked")
        Iterator<Index> it = table.getIndexIterator(); it.hasNext();) {
            Index index = it.next();
            appendDropIndex(sb, index);
        }
    }

    appendModifyColumn(sb, tableName, column);

    // Add back dropped PK constraints and indexes for MS-SQL
    if (this.isMSSQL) {
        if (table.hasPrimaryKey()) {
            appendAddPrimaryKey(sb, table);
        }

        for (@SuppressWarnings("unchecked")
        Iterator<Index> it = table.getIndexIterator(); it.hasNext();) {
            Index index = it.next();
            appendAddIndex(sb, index);
        }
    }

    sb.append("  </changeSet>\n");
    this.logCount++;
}

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