org.openanzo.sqlscribe
Class ValueMatch

java.lang.Object
  org.openanzo.sqlscribe.Match
      org.openanzo.sqlscribe.ValueMatch

All Implemented Interfaces:

Constraint

public class ValueMatch
extends Match
implements Constraint

Simple value constraint builder. For example "WHERE id = 10" is a simple value constraint on the 'id' column of some table.

Author:

Joe Betz

Constructor Summary

ValueMatch(Column lhs, java.lang.String operator, java.lang.Object value)
Create a new Value match

Method Summary

java.lang.String	getConstraint(java.util.List<java.lang.String> unboundVariables) Get the SQL text for this constraint, using any variables from the provided list
java.lang.Object	getValue() Get the value to match
void	writeConstraint(java.lang.StringBuffer buf, java.util.List<java.lang.String> unboundVariables) Write the SQL text for this constraint to the provided buffer, using any variables from the provided list

Methods inherited from class org.openanzo.sqlscribe.Match

equals, equals, getLhs, getOperator, greater, greater, in, isNotNull, isNull, less, less, listTables, varEquals, varGreater, varGreaterEquals, varLess, varLessEquals

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.openanzo.sqlscribe.Constraint

listTables

Constructor Detail

ValueMatch

public ValueMatch(Column lhs,
                  java.lang.String operator,
                  java.lang.Object value)

Create a new Value match

Parameters:

lhs - column to match

operator - type of match operation

value - value to match

Method Detail

getConstraint

public java.lang.String getConstraint(java.util.List<java.lang.String> unboundVariables)

Description copied from interface: Constraint

Get the SQL text for this constraint, using any variables from the provided list

Specified by:

getConstraint in interface Constraint

Parameters:

unboundVariables - set of variables that can be used within constraints

Returns:

the SQL text for this constraint, using any variables from the provided list

writeConstraint

public void writeConstraint(java.lang.StringBuffer buf,
                            java.util.List<java.lang.String> unboundVariables)

Description copied from interface: Constraint

Write the SQL text for this constraint to the provided buffer, using any variables from the provided list

Specified by:

writeConstraint in interface Constraint

Parameters:

buf - StringBuffer to which the SQL text for this constraint is appended

unboundVariables - set of variables that can be used within constraints

getValue

public java.lang.Object getValue()

Get the value to match

Returns:

the value to match