Module litebridge.db.spi.impl

Package org.litebridgedb.db.spi.impl.sql

Class AbstractSqlGenerator

java.lang.Object

org.litebridgedb.db.spi.impl.sql.AbstractSqlGenerator

Direct Known Subclasses:

DeleteSqlGenerator, InsertSqlGenerator, SelectSqlGenerator, UpdateSqlGenerator

public abstract class AbstractSqlGenerator
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
protected final ColumnIdentifierGenerator	columnIdentifierGenerator
protected final TypeConverter	typeConverter

Constructor Summary

Constructors

Constructor	Description
AbstractSqlGenerator(TypeConverter typeConverter, ColumnIdentifierGenerator columnIdentifierGenerator, BiFunction<Table,ConnectionProvider,TableMetaData> ensureTableMetaData)

Method Summary

Modifier and Type	Method	Description
protected StringBuilder	appendTable(StringBuilder sql, @Nullable String schema, String table)
protected StringBuilder	appendTable(StringBuilder sql, Table table)
protected BindValue	createBindValue(@Nullable Column column, @Nullable Object rawValue, ConnectionProvider connectionProvider)
protected PreparedSql	createCondition(Condition condition, Operation operation, ConnectionProvider connectionProvider)	Generate a SQL condition string based on the given Condition.
protected ColumnMetaData	ensureColumnMetaData(Column column, ConnectionProvider connectionProvider)
protected TableMetaData	ensureTableMetaData(Table table, ConnectionProvider connectionProvider)
protected @Nullable Object	getExpressionValue(SelectExpression selectExpression)
protected String	mapOperator(Operator operator)	Map an Operator enum to its corresponding string representation used in logical or database operations.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

typeConverter

protected final TypeConverter typeConverter

columnIdentifierGenerator

protected final ColumnIdentifierGenerator columnIdentifierGenerator

Constructor Details

AbstractSqlGenerator

public AbstractSqlGenerator(TypeConverter typeConverter,
 ColumnIdentifierGenerator columnIdentifierGenerator,
 BiFunction<Table,ConnectionProvider,TableMetaData> ensureTableMetaData)

Method Details

createCondition

protected PreparedSql createCondition(Condition condition,
 Operation operation,
 ConnectionProvider connectionProvider)

Generate a SQL condition string based on the given Condition. This method constructs the SQL fragment by combining the column, operator, and value (if applicable) for the provided condition.

Parameters:

condition - the Condition object specifying the column, operator, and value for the SQL condition

Returns:

a String representing the constructed SQL condition fragment

mapOperator

protected String mapOperator(Operator operator)

Map an Operator enum to its corresponding string representation used in logical or database operations.

Parameters:

operator - the Operator enum to be mapped

Returns:

the string representation of the provided Operator

appendTable

protected StringBuilder appendTable(StringBuilder sql,
 Table table)

appendTable

protected StringBuilder appendTable(StringBuilder sql,
 @Nullable String schema,
 String table)

getExpressionValue

protected @Nullable Object getExpressionValue(SelectExpression selectExpression)

ensureTableMetaData

protected TableMetaData ensureTableMetaData(Table table,
 ConnectionProvider connectionProvider)

ensureColumnMetaData

protected ColumnMetaData ensureColumnMetaData(Column column,
 ConnectionProvider connectionProvider)

createBindValue

protected BindValue createBindValue(@Nullable Column column,
 @Nullable Object rawValue,
 ConnectionProvider connectionProvider)