com.solarmetric.kodo.impl.jdbc.sql
Class SQLValue

java.lang.Object
  |
  +--com.solarmetric.kodo.impl.jdbc.sql.SQLValue

All Implemented Interfaces:

Serializable, SQLElement

public class SQLValue

extends Object

implements SQLElement

Class that represents a value in a SQL statement, that can either be included in a Statement (after translated through the DBDictionary), or bound as a parameter in a PreparedStatement. Determination of how the value will be represented is done by the execution envrionment, typically an instance of SQLExecutionManager.

Since:

2.4

See Also:

SQLBuffer, Serialized Form

Field Summary

static String

PREPARED_STATEMENT_TOKEN

Constructor Summary

SQLValue(Object value, DBDictionary dict, int columnType)
Constructor.

Method Summary

int	applyParameter(PreparedStatement ps, int index) Apply the parameters to the given PreparedStatement at the specified index, returning the number of parameters that were bound.
String	getBoundParameter() Returns the bound parameter for inclusion on a PreparedStatement.
int	getJDBCType() Return a type that JDBC can understand.
String	getUnboundParameter() Returns the parameter as a String suitable for embedding in a SQL Statement.
Object	getValue() Return the raw object value.
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

PREPARED_STATEMENT_TOKEN

public static final String PREPARED_STATEMENT_TOKEN

Constructor Detail

SQLValue

public SQLValue(Object value,
                DBDictionary dict,
                int columnType)

Constructor.

Parameters:

value - the Object valueof the parameter

dict - The DBDictionary to use for translating object's into raw SQL for use in plain Statements.

columnType - The column type of the data, as defined by SQLTypes. This is only needed in order to know how to store a null in a PreparedStatement.

See Also:

Column.getType(), SQLTypes

Method Detail

getBoundParameter

public String getBoundParameter()

Description copied from interface: SQLElement

Returns the bound parameter for inclusion on a PreparedStatement. E.g., for a replaceable value, this would be "?", but for a literal it would be the raw String.

Specified by:

getBoundParameter in interface SQLElement

getUnboundParameter

public String getUnboundParameter()

Description copied from interface: SQLElement

Returns the parameter as a String suitable for embedding in a SQL Statement. This will do any disctionary-specific translation in order to return a String suitable for sending the data to the data store.

Specified by:

getUnboundParameter in interface SQLElement

getValue

public Object getValue()

Return the raw object value.

toString

public String toString()

Overrides:

toString in class Object

getJDBCType

public int getJDBCType()

Return a type that JDBC can understand.

applyParameter

public int applyParameter(PreparedStatement ps,
                          int index)
                   throws SQLException

Apply the parameters to the given PreparedStatement at the specified index, returning the number of parameters that were bound.

Specified by:

applyParameter in interface SQLElement

Following copied from interface: com.solarmetric.kodo.impl.jdbc.sql.SQLElement

Returns:

the number of parameters bound (typically one or 0)