com.denodo.vdb.engine.customwrapper.expression

Class CustomWrapperExpression

java.lang.Object

com.denodo.vdb.engine.customwrapper.expression.CustomWrapperExpression

Direct Known Subclasses:

CustomWrapperArrayExpression, CustomWrapperConditionExpression, CustomWrapperContainsExpression, CustomWrapperFieldExpression, CustomWrapperFunctionExpression, CustomWrapperRegisterExpression, CustomWrapperSimpleExpression

public abstract class CustomWrapperExpression
extends Object

Superclass of all the types of expressions supported by Custom Wrapper conditions.

See Also:

CustomWrapperCondition

Field Summary

Fields

Modifier and Type	Field and Description
protected static int	ARRAY_TYPE
protected static int	CONDITION_TYPE
protected static int	CONTAINS_TYPE
protected static int	FIELD_TYPE
protected static int	FUNCTION_TYPE
protected static int	REGISTER_TYPE
protected static int	SIMPLE_TYPE

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	CustomWrapperExpression()

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj)
protected abstract int	getExpressionType()
int	hashCode()
boolean	isArrayExpression()
boolean	isConditionExpression()
boolean	isContainsExpression() Deprecated. The operator contains has been removed from the Denodo Platform. We suggest you remove all the references to this method from the code of your custom wrappers. This method still exists to allow you to load your existing extensions without modifying them. However, the execution engine will not execute this operator.
boolean	isFieldExpression()
boolean	isFunctionExpression()
boolean	isRegisterExpression()
boolean	isSimpleExpression()
abstract String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

SIMPLE_TYPE

protected static final int SIMPLE_TYPE

See Also:

Constant Field Values

FIELD_TYPE

protected static final int FIELD_TYPE

See Also:

Constant Field Values

FUNCTION_TYPE

protected static final int FUNCTION_TYPE

See Also:

Constant Field Values

CONDITION_TYPE

protected static final int CONDITION_TYPE

See Also:

Constant Field Values

ARRAY_TYPE

protected static final int ARRAY_TYPE

See Also:

Constant Field Values

CONTAINS_TYPE

protected static final int CONTAINS_TYPE

See Also:

Constant Field Values

REGISTER_TYPE

protected static final int REGISTER_TYPE

See Also:

Constant Field Values

Constructor Detail

CustomWrapperExpression

protected CustomWrapperExpression()

Method Detail

getExpressionType

protected abstract int getExpressionType()

isSimpleExpression

public boolean isSimpleExpression()

Returns:

true if this expression is a simple expression, false otherwise.

isFieldExpression

public boolean isFieldExpression()

Returns:

true if this expression is a field expression, false otherwise.

isFunctionExpression

public boolean isFunctionExpression()

Returns:

true if this expression is a function expression, false otherwise.

isConditionExpression

public boolean isConditionExpression()

Returns:

true if this expression is a condition expression, false otherwise.

isArrayExpression

public boolean isArrayExpression()

Returns:

true if this expression is an array expression, false otherwise.

isContainsExpression

@Deprecated
public boolean isContainsExpression()

Deprecated. The operator contains has been removed from the Denodo Platform. We suggest you remove all the references to this method from the code of your custom wrappers. This method still exists to allow you to load your existing extensions without modifying them. However, the execution engine will not execute this operator.

Returns:

true if this expression is a expression using the operator 'contains', false otherwise.

isRegisterExpression

public boolean isRegisterExpression()

Returns:

true if this expression is a register expression, false otherwise.

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public final boolean equals(Object obj)

Overrides:

equals in class Object

toString

public abstract String toString()

Overrides:

toString in class Object