Example usage for org.hibernate.dialect Dialect getAddColumnString

Introduction

In this page you can find the example usage for org.hibernate.dialect Dialect getAddColumnString.

Prototype

public String getAddColumnString() 

Source Link

Document

The syntax used to add a column to a table (optional).

Usage

From source file:com.amalto.core.storage.hibernate.mapping.MDMDenormalizedTable.java

License:Open Source License

@Override
public Iterator sqlAlterStrings(Dialect dialect, Mapping p, TableMetadata tableInfo, String defaultCatalog,
        String defaultSchema) throws HibernateException {

    StringBuilder root = new StringBuilder("alter table ")
            .append(getQualifiedName(dialect, defaultCatalog, defaultSchema)).append(' ');

    Iterator iter = getColumnIterator();
    List results = new ArrayList();

    while (iter.hasNext()) {
        Column column = (Column) iter.next();

        ColumnMetadata columnInfo = tableInfo.getColumnMetadata(column.getName());

        if (columnInfo == null) {
            // the column doesnt exist at all.
            StringBuilder alter = new StringBuilder(root.toString()).append(dialect.getAddColumnString())
                    .append(' ').append(column.getQuotedName(dialect)).append(' ')
                    .append(column.getSqlType(dialect, p));

            String defaultValue = column.getDefaultValue();
            if (defaultValue != null) {
                alter.append(" default ").append(defaultValue);
            }/*from   w ww.ja  va 2  s  . com*/

            if (column.isNullable()) {
                alter.append(dialect.getNullColumnString());
            } else {
                alter.append(" not null");
            }

            if (column.isUnique()) {
                String keyName = Constraint.generateName("UK_", this, column);
                UniqueKey uk = getOrCreateUniqueKey(keyName);
                uk.addColumn(column);
                alter.append(dialect.getUniqueDelegate().getColumnDefinitionUniquenessFragment(column));
            }

            if (column.hasCheckConstraint() && dialect.supportsColumnCheck()) {
                alter.append(" check(").append(column.getCheckConstraint()).append(")");
            }

            String columnComment = column.getComment();
            if (columnComment != null) {
                alter.append(dialect.getColumnComment(columnComment));
            }

            alter.append(dialect.getAddColumnSuffixString());

            results.add(alter.toString());
        } else if (MDMTableUtils.isAlterColumnField(column, columnInfo, dialect)) {
            StringBuilder alter = new StringBuilder(root.toString());

            if (dialect instanceof SQLServerDialect || dialect instanceof PostgreSQLDialect) {
                alter.append(" ").append("alter COLUMN").append(" ");
            } else {
                alter.append(" ").append("modify").append(" ");
            }
            alter.append(" ").append(column.getQuotedName(dialect)).append(" ");

            if (dialect instanceof PostgreSQLDialect) {
                alter.append("TYPE").append(" ");
            }

            alter.append(column.getSqlType(dialect, p));

            LOGGER.debug(alter.toString());
            results.add(alter.toString());
        }
    }
    return results.iterator();
}

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From source file:com.amalto.core.storage.hibernate.mapping.MDMTable.java

License:Open Source License

@Override
public Iterator sqlAlterStrings(Dialect dialect, Mapping p, TableMetadata tableInfo, String defaultCatalog,
        String defaultSchema) throws HibernateException {

    StringBuilder root = new StringBuilder("alter table ")
            .append(getQualifiedName(dialect, defaultCatalog, defaultSchema)).append(' ');

    Iterator iter = getColumnIterator();
    List results = new ArrayList();

    while (iter.hasNext()) {
        Column column = (Column) iter.next();

        ColumnMetadata columnInfo = tableInfo.getColumnMetadata(column.getName());

        if (columnInfo == null) {
            // the column doesnt exist at all.
            StringBuilder alter = new StringBuilder(root.toString()).append(dialect.getAddColumnString())
                    .append(' ').append(column.getQuotedName(dialect)).append(' ')
                    .append(column.getSqlType(dialect, p));

            String defaultValue = column.getDefaultValue();
            if (defaultValue != null) {
                alter.append(" default ").append(defaultValue);
            }/*from   w ww  . j  ava 2  s  .  c o m*/

            if (column.isNullable()) {
                alter.append(dialect.getNullColumnString());
            } else {
                alter.append(" not null");
            }

            if (column.isUnique()) {
                String keyName = Constraint.generateName("UK_", this, column);
                UniqueKey uk = getOrCreateUniqueKey(keyName);
                uk.addColumn(column);
                alter.append(dialect.getUniqueDelegate().getColumnDefinitionUniquenessFragment(column));
            }

            if (column.hasCheckConstraint() && dialect.supportsColumnCheck()) {
                alter.append(" check(").append(column.getCheckConstraint()).append(")");
            }

            String columnComment = column.getComment();
            if (columnComment != null) {
                alter.append(dialect.getColumnComment(columnComment));
            }

            alter.append(dialect.getAddColumnSuffixString());

            results.add(alter.toString());
        } else if (MDMTableUtils.isAlterColumnField(column, columnInfo, dialect)) {
            StringBuilder alter = new StringBuilder(root.toString());

            if (dialect instanceof SQLServerDialect || dialect instanceof PostgreSQLDialect) {
                alter.append(" ").append("alter COLUMN").append(" ");
            } else {
                alter.append(" ").append("modify").append(" ");
            }
            alter.append(" ").append(column.getQuotedName(dialect)).append(" ");

            if (dialect instanceof PostgreSQLDialect) {
                alter.append("TYPE").append(" ");
            }

            alter.append(column.getSqlType(dialect, p));

            String defaultValue = column.getDefaultValue();
            if (defaultValue != null) {
                alter.append(" default ").append(defaultValue);
            }

            if (column.isNullable()) {
                alter.append(dialect.getNullColumnString());
            } else {
                alter.append(" not null");
            }

            if (column.isUnique()) {
                String keyName = Constraint.generateName("UK_", this, column);
                UniqueKey uk = getOrCreateUniqueKey(keyName);
                uk.addColumn(column);
                alter.append(dialect.getUniqueDelegate().getColumnDefinitionUniquenessFragment(column));
            }

            if (column.hasCheckConstraint() && dialect.supportsColumnCheck()) {
                alter.append(" check(").append(column.getCheckConstraint()).append(")");
            }

            String columnComment = column.getComment();
            if (columnComment != null) {
                alter.append(dialect.getColumnComment(columnComment));
            }

            alter.append(dialect.getAddColumnSuffixString());

            LOGGER.debug(alter.toString());
            results.add(alter.toString());
        }

    }
    return results.iterator();
}

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