Package org.queryman.builder.token

Class PreparedExpression<T>

java.lang.Object

org.queryman.builder.token.AbstractToken

org.queryman.builder.token.Expression

org.queryman.builder.token.PreparedExpression<T>

All Implemented Interfaces:

ExpressionAsStep, ExpressionCastStep, Token

Direct Known Subclasses:

ArrayExpression, BigDecimalExpression, BooleanExpression, ByteExpression, DateExpression, DollarStringExpression, DoubleExpression, FloatExpression, FuncExpression, IntegerExpression, ListExpression, LongExpression, ShortExpression, StringExpression, SubQueryExpression, TimeExpression, TimestampExpression, UUIDExpression

public abstract class PreparedExpression<T>
extends Expression

Any prepared expression behaves itself as a simple string in case, when it is used in SQL string. Another behavior of it is distinct from the above, this is a prepared statement. The value of a expression is replaced by placeholder ?, then the value of the expression is invoked included PreparedStatement using one of setXXX methods.

See Also:

Query.buildPreparedStatement(Connection)

Field Summary

Fields

Modifier and Type	Field	Description
protected T	value

Fields inherited from class org.queryman.builder.token.AbstractToken

name

Fields inherited from class org.queryman.builder.token.Expression

outputName

Constructor Summary

Constructors

Constructor	Description
PreparedExpression(T constant)

Method Summary

Modifier and Type	Method	Description
abstract void	bind(java.util.Map<java.lang.Integer,PreparedExpression> map)
java.lang.String	getPlaceholder()	Returns a placeholder to use in SQL string.
abstract T	getValue()

Methods inherited from class org.queryman.builder.token.AbstractToken

isEmpty, isNonEmpty, toString

Methods inherited from class org.queryman.builder.token.Expression

as, as, cast, getCastExpression, getName, prepareName, toPostgreSQLString

Methods inherited from class java.lang.Object

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

Field Detail

value

protected T value

Constructor Detail

PreparedExpression

public PreparedExpression(T constant)

Method Detail

getPlaceholder

public java.lang.String getPlaceholder()

Returns a placeholder to use in SQL string.

Returns:

a placeholder

getValue

public abstract T getValue()

Returns:

value of prepared expression

bind

public abstract void bind(java.util.Map<java.lang.Integer,PreparedExpression> map)