uk.ac.ed.epcc.webapp.model.data

Interface FieldValue<T,X>

Type Parameters:

T - type of field data

X - type of owning DataObject

All Superinterfaces:

Accessor<T,X>, GroupingSQLValue<T>, SQLAccessor<T,X>, SQLValue<T>, Targetted<T>

All Known Subinterfaces:

FieldSQLExpression<T,X>

All Known Implementing Classes:

BooleanFieldExpression, DateFieldExpression, FieldExpression, IndexedFieldValue, NumberFieldExpression, StreamDataFieldExpression, StringFieldExpression, TimestampDateFieldExpression, TypeProducerFieldValue

public interface FieldValue<T,X>
extends SQLAccessor<T,X>, GroupingSQLValue<T>

SQLAccessor that represents a field in the DataBase

Method Summary

Modifier and Type	Method and Description
default int	addField(java.lang.StringBuilder sb, boolean qualify) add SQLFragment corresponding to the raw database field.
java.lang.String	getFieldName() Get the corresponding field name.
void	setObject(java.sql.PreparedStatement stmt, int pos, T value) Add an object of the target type to a prepared statement doing any necessary type conversion to map it to the SQL representation of the object (as generated by addField(StringBuilder, boolean) Note this is only valid if canSet from SQLAccessor returns true.

Methods inherited from interface uk.ac.ed.epcc.webapp.jdbc.expr.Accessor

canSet, getValue, setValue

Methods inherited from interface uk.ac.ed.epcc.webapp.jdbc.expr.GroupingSQLValue

addGroup, checkContentsCanGroup, getGroupParameters, groupingIsomorphic

Methods inherited from interface uk.ac.ed.epcc.webapp.jdbc.expr.SQLValue

add, getParameters, getRequiredFilter, makeObject

Methods inherited from interface uk.ac.ed.epcc.webapp.Targetted

getTarget

Method Detail

getFieldName

java.lang.String getFieldName()

Get the corresponding field name. This should not be used to create SQL fragments but can be used to identify Repository field names

Returns:

database field name

setObject

void setObject(java.sql.PreparedStatement stmt,
               int pos,
               T value)
        throws java.sql.SQLException

Add an object of the target type to a prepared statement doing any necessary type conversion to map it to the SQL representation of the object (as generated by addField(StringBuilder, boolean) Note this is only valid if canSet from SQLAccessor returns true.

Parameters:

stmt -

pos -

value -

Throws:

java.sql.SQLException

addField

default int addField(java.lang.StringBuilder sb,
                     boolean qualify)

add SQLFragment corresponding to the raw database field. Normally the same as SQLValue.add(StringBuilder, boolean)

Parameters:

sb -

qualify -

Returns: