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Java Source Code / Java Documentation » Development » JoSQL » org.josql.expressions

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

org.josql.expressions .Expression

org.josql.expressions .BinaryExpression

org.josql.expressions .InExpression

InExpression
public class InExpression extends BinaryExpression (Code)
	This class represents in [ NOT ] IN [ LIKE ] [ ALL ] expression. If any of the values listed are Maps or Collections then they are iterated over to see if a match is found. For Maps only the key values are checked. If you pass a list then it is iterated over using a `for` construct rather than an Iterator since it's much faster. Note: due to the way that the expression is designed it is POSSIBLE to have a binary expression in the in list, however at this time that is not supported since it can lead to an ambiguous result, for example: `true IN (true, false)` has no sensible meaning.

Method Summary
public void	addItem(Expression e)
public List	getItems()
public void	init(Query q) Initialise the IN expression.
public boolean	isAll()
public boolean	isDoLike()
public boolean	isIgnoreCase()
public boolean	isNot()
public boolean	isTrue(Object o, Query q) Return whether this expression evaulates to `true`.
public void	setAll(boolean v)
public void	setDoLike(boolean d)
public void	setIgnoreCase(boolean v)
public void	setItems(List items)
public void	setNot(boolean v)
public String	toString() Return a string representation of this expression.

Method Detail

addItem
public void addItem(Expression e)(Code)

getItems
public List getItems()(Code)

init
public void init(Query q) throws QueryParseException(Code)
	Initialise the IN expression. Init the LHS and then all of the values in the brackets. Parameters: q - The Query object. throws: QueryParseException - If something goes wrong with the init.

isAll
public boolean isAll()(Code)

isDoLike
public boolean isDoLike()(Code)

isIgnoreCase
public boolean isIgnoreCase()(Code)

isNot
public boolean isNot()(Code)

isTrue
public boolean isTrue(Object o, Query q) throws QueryExecutionException(Code)
	Return whether this expression evaulates to `true`. If any of the values on RHS are Maps (keys only) or Collections then they are iterated over and checked against the LHS. Parameters: o - The current object to perform the expression on. Parameters: q - The Query object. `true` if the LHS is "equal" (as determined by: Utilities.isEquals(ObjectObject))to any of the values in the brackets. If this is a NOT expression then the result is negated. throws: QueryExecutionException - If the expression cannot be evaluated.

setAll
public void setAll(boolean v)(Code)

setDoLike
public void setDoLike(boolean d)(Code)

setIgnoreCase
public void setIgnoreCase(boolean v)(Code)

setItems
public void setItems(List items)(Code)

setNot
public void setNot(boolean v)(Code)

toString
public String toString()(Code)
	Return a string representation of this expression. In the form: Expression.toString Expression [ NOT ] [$]IN [ LIKE ] [ ALL ] ( Expression.toString Expression [ , Expression.toString Expression * ] ) A string representation of this expression.

Fields inherited from org.josql.expressions.BinaryExpression

protected Expression left(Code)(Java Doc)
protected Expression right(Code)(Java Doc)

Methods inherited from org.josql.expressions.BinaryExpression

public Class getExpectedReturnType(Query q)(Code)(Java Doc)
public Expression getLeft()(Code)(Java Doc)
public Expression getRight()(Code)(Java Doc)
public Object getValue(Object o, Query q) throws QueryExecutionException(Code)(Java Doc)
public boolean hasFixedResult(Query q)(Code)(Java Doc)
public void init(Query q) throws QueryParseException(Code)(Java Doc)
public void setLeft(Expression exp)(Code)(Java Doc)
public void setRight(Expression exp)(Code)(Java Doc)

Methods inherited from org.josql.expressions.Expression

abstract public Class getExpectedReturnType(Query q) throws QueryParseException(Code)(Java Doc)
abstract public Object getValue(Object o, Query q) throws QueryExecutionException(Code)(Java Doc)
abstract public boolean hasFixedResult(Query q)(Code)(Java Doc)
abstract public void init(Query q) throws QueryParseException(Code)(Java Doc)
public boolean isBracketed()(Code)(Java Doc)
abstract public boolean isTrue(Object o, Query q) throws QueryExecutionException(Code)(Java Doc)
public void setBracketed(boolean v)(Code)(Java Doc)
abstract public String toString()(Code)(Java Doc)

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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