com.scalar.db.sql.statement.AlterTableAddColumnStatement Maven / Gradle / Ivy
package com.scalar.db.sql.statement;
import com.scalar.db.sql.DataType;
import com.scalar.db.sql.TableRef;
import java.util.Objects;
import javax.annotation.concurrent.Immutable;
@Immutable
public class AlterTableAddColumnStatement
implements DdlStatement, NamespaceNameOmittable {
public final TableRef table;
public final String columnName;
public final DataType columnDataType;
public final boolean encrypted;
private AlterTableAddColumnStatement(
TableRef table, String columnName, DataType columnDataType, boolean encrypted) {
this.table = Objects.requireNonNull(table);
this.columnName = Objects.requireNonNull(columnName);
this.columnDataType = Objects.requireNonNull(columnDataType);
this.encrypted = encrypted;
}
@Override
public String toSql() {
StringBuilder builder = new StringBuilder("ALTER TABLE ");
StatementUtils.appendTable(builder, table);
builder.append(" ADD COLUMN ");
StatementUtils.appendObjectName(builder, columnName);
builder.append(" ").append(columnDataType);
if (encrypted) {
builder.append(" ENCRYPTED");
}
return builder.toString();
}
@Override
public R accept(StatementVisitor visitor, C context) {
return visitor.visit(this, context);
}
@Override
public R accept(DdlStatementVisitor visitor, C context) {
return visitor.visit(this, context);
}
@Override
public boolean namespaceNameOmitted() {
return table.namespaceName == null;
}
@Override
public AlterTableAddColumnStatement setNamespaceNameIfOmitted(String namespaceName) {
if (namespaceNameOmitted()) {
return create(
TableRef.of(namespaceName, table.tableName), columnName, columnDataType, encrypted);
}
return this;
}
@Override
public String toString() {
return toSql();
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (!(o instanceof AlterTableAddColumnStatement)) {
return false;
}
AlterTableAddColumnStatement that = (AlterTableAddColumnStatement) o;
return Objects.equals(table, that.table)
&& Objects.equals(columnName, that.columnName)
&& columnDataType == that.columnDataType;
}
@Override
public int hashCode() {
return Objects.hash(table, columnName, columnDataType);
}
public static AlterTableAddColumnStatement create(
TableRef table, String columnName, DataType columnDataType, boolean encrypted) {
return new AlterTableAddColumnStatement(table, columnName, columnDataType, encrypted);
}
}