org.openanzo.sqlscribe
Interface Constraint

All Known Implementing Classes:

InMatch, Join, LogicalOperator, Match, ValueMatch, VariableMatch

public interface Constraint

Common interface for all constraint types used in a SQL query.

Author:

Joe Betz

See Also:

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.util.Set<ITable>	listTables() Get the set of tables to which this constraint is based
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

Method Detail

listTables

java.util.Set<ITable> listTables()

Get the set of tables to which this constraint is based

Returns:

the set of tables to which this constraint is based

getConstraint

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

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

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

Parameters:

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

unboundVariables - set of variables that can be used within constraints