com.luciad.expressions

Class Expression

java.lang.Object

com.luciad.expressions.Expression

All Implemented Interfaces:

AutoCloseable

public final class Expression
extends Object
implements AutoCloseable

An expression is an opaque object whose evaluation returns a value.

A condition is a case of an expression that always returns a boolean value.

Method Summary

Modifier and Type	Method and Description
void	accept(IExpressionVisitor visitor) An expression accepts a visitor allowing to traverse the expression hierarchy.
void	close()
boolean	equals(Object other)
protected void	finalize()
int	hashCode()
boolean	isCondition() Returns true when this expression is a condition.

Methods inherited from class java.lang.Object

clone, getClass, notify, notifyAll, toString, wait, wait, wait

Method Detail

finalize

protected void finalize()

Overrides:

finalize in class Object

close

public void close()

Specified by:

close in interface AutoCloseable

isCondition

public boolean isCondition()

Returns true when this expression is a condition.

This is the case when the evaluation of the expression always results in a boolean.

Returns:

true when this expression is a condition.

accept

public void accept(@NotNull
                   IExpressionVisitor visitor)

An expression accepts a visitor allowing to traverse the expression hierarchy.

Parameters:

visitor - the visitor.

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(@Nullable
                      Object other)

Overrides:

equals in class Object