com.compoze.exchange.webdav.sql
Class Condition

java.lang.Object

  |

  +--com.compoze.exchange.webdav.sql.AbstractSqlFragment

        |

        +--com.compoze.exchange.webdav.sql.Condition

All Implemented Interfaces:

ISqlFragment, java.io.Serializable

Direct Known Subclasses:

IsNullCondition, NotCondition

public class Condition

extends AbstractSqlFragment

implements ISqlFragment

This class provides the implementation for creating a condition statement.

The following example demonstrates how to use this class:

 Condition cond = Condition.create(new GreaterThanOperator("urn:schemas:contacts:givenName", "Skip"), true);
 cond.add(new GreaterThanOperator("urn:schemas:contacts:givenName", "Skippy"), true);

 System.out.println(cond);
 

Calling toSQL() or toString() will return the SQL representation of this object. For example, the above example would yield:

 ("urn:schemas:contacts:givenName" > 'Skip') OR ("urn:schemas:contacts:givenName" > 'Skippy') 
 

See Also:

Serialized Form

Constructor Summary

protected	Condition() Constructor.
protected	Condition(Condition condition, boolean bOr) Constructor.
protected	Condition(IOperator op, boolean bOr) Constructor.
protected	Condition(IPredicate predicate, boolean bOr) Constructor.

Method Summary

void	add(Condition condition) Adds a condition statement.
void	add(Condition condition, boolean bOr) Adds a condition statement.
void	add(IOperator op) Adds an operator clause.
void	add(IOperator op, boolean bOr) Adds an operator clause.
void	add(IPredicate predicate) Adds a predicate clause.
void	add(IPredicate predicate, boolean bOr) Adds a predicate clause.
static Condition	create() Creates an empty condition statement.
static Condition	create(Condition condition) Creates a condition with a specfied condition statement.
static Condition	create(Condition condition, boolean bOr) Creates a condition with a specfied condition statement.
static Condition	create(IOperator op) Creates a condition with a specfied operator clause.
static Condition	create(IOperator op, boolean bOr) Creates a condition with a specfied operator clause.
static Condition	create(IPredicate predicate) Creates a condition with a specfied predicate clause.
static Condition	create(IPredicate predicate, boolean bOr) Creates a condition with a specfied predicate clause.
ISqlFragment	getCondition() Gets the condition statement.
boolean	isEmpty() Checks whether this condition contains sub-conditions.
boolean	isOr() Checks whether this condition is 'OR'd.
static void	main(java.lang.String[] args)
java.lang.String	toSQL() Returns a SQL representation of the condition statement.

Methods inherited from class com.compoze.exchange.webdav.sql.AbstractSqlFragment

escape, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

Condition

protected Condition()

Constructor.

Condition

protected Condition(Condition condition,
                    boolean bOr)

Constructor.

Parameters:

condition - the condition statement.

bOr - true to or together; false otherwise.

Condition

protected Condition(IOperator op,
                    boolean bOr)

Constructor.

Parameters:

op - the operator statement.

bOr - true to or together; false otherwise.

Condition

protected Condition(IPredicate predicate,
                    boolean bOr)

Constructor.

Parameters:

predicate - the predicate statement.

bOr - true to or together; false otherwise.

Method Detail

isEmpty

public boolean isEmpty()

Checks whether this condition contains sub-conditions.

Returns:

true if this condition contains no sub-conditions; false otherwise.

isOr

public boolean isOr()

Checks whether this condition is 'OR'd.

Returns:

true if this condition is 'OR'd; false otherwise.

getCondition

public ISqlFragment getCondition()

Gets the condition statement.

Returns:

the condition statement.

create

public static Condition create()

Creates an empty condition statement.

Returns:

the condition

create

public static Condition create(Condition condition)

Creates a condition with a specfied condition statement.

Parameters:

condition - the condition statement to create condition with.

Returns:

the condition.

create

public static Condition create(Condition condition,
                               boolean bOr)

Creates a condition with a specfied condition statement.

Parameters:

condition - the condition statement to create condition with.

bOr - true to or together; false otherwise.

Returns:

the condition.

create

public static Condition create(IOperator op)

Creates a condition with a specfied operator clause.

Parameters:

op - the operator clause to create condition with.

Returns:

the condition.

create

public static Condition create(IOperator op,
                               boolean bOr)

Creates a condition with a specfied operator clause.

Parameters:

op - the operator clause to create condition with.

bOr - true to or together; false otherwise.

Returns:

the condition.

create

public static Condition create(IPredicate predicate)

Creates a condition with a specfied predicate clause.

Parameters:

predicate - the predicate clause to create condition with.

bOr - true to or together; false otherwise.

create

public static Condition create(IPredicate predicate,
                               boolean bOr)

Creates a condition with a specfied predicate clause.

Parameters:

predicate - the predicate clause to create condition with.

bOr - true to or together; false otherwise.

add

public void add(Condition condition)

Adds a condition statement.

Parameters:

condition - the condition statemnt to add.

add

public void add(Condition condition,
                boolean bOr)

Adds a condition statement.

Parameters:

condition - the condition statemnt to add.

bOr - true to or together; false otherwise.

add

public void add(IOperator op)

Adds an operator clause.

Parameters:

op - the operator clause to add.

add

public void add(IOperator op,
                boolean bOr)

Adds an operator clause.

Parameters:

op - the operator clause to add.

bOr - true to or together; false otherwise.

add

public void add(IPredicate predicate)

Adds a predicate clause.

Parameters:

predicate - the predicate clause to add.

add

public void add(IPredicate predicate,
                boolean bOr)

Adds a predicate clause.

Parameters:

predicate - the predicate clause to add.

bOr - true to or together; false otherwise.

toSQL

public java.lang.String toSQL()

Returns a SQL representation of the condition statement.

Specified by:

toSQL in interface ISqlFragment

Overrides:

toSQL in class AbstractSqlFragment

Returns:

the SQL representation of the condition statement.

main

public static void main(java.lang.String[] args)