org.hibernate.sql.Update Maven / Gradle / Ivy

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The core O/RM functionality as provided by Hibernate

There is a newer version: 7.0.0.Alpha1

/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
 * See the lgpl.txt file in the root directory or .
 */
package org.hibernate.sql;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.Map;

import org.hibernate.dialect.Dialect;
import org.hibernate.type.LiteralType;

/**
 * An SQL UPDATE statement
 *
 * @author Gavin King
 */
public class Update {

	private String tableName;
	private String versionColumnName;
	private String where;
	private String assignments;
	private String comment;

	private Map primaryKeyColumns = new LinkedHashMap();
	private Map columns = new LinkedHashMap();
	private Map whereColumns = new LinkedHashMap();
	
	private Dialect dialect;
	
	public Update(Dialect dialect) {
		this.dialect = dialect;
	}

	public String getTableName() {
		return tableName;
	}

	public Update appendAssignmentFragment(String fragment) {
		if ( assignments == null ) {
			assignments = fragment;
		}
		else {
			assignments += ", " + fragment;
		}
		return this;
	}

	public Update setTableName(String tableName) {
		this.tableName = tableName;
		return this;
	}

	public Update setPrimaryKeyColumnNames(String[] columnNames) {
		this.primaryKeyColumns.clear();
		addPrimaryKeyColumns(columnNames);
		return this;
	}	
	
	public Update addPrimaryKeyColumns(String[] columnNames) {
		for ( String columnName : columnNames ) {
			addPrimaryKeyColumn( columnName, "?" );
		}
		return this;
	}
	
	public Update addPrimaryKeyColumns(String[] columnNames, boolean[] includeColumns, String[] valueExpressions) {
		for ( int i=0; i