er.extensions.qualifiers

Class ERXQualifierTraversal

java.lang.Object

er.extensions.qualifiers.ERXQualifierTraversal

Direct Known Subclasses:

ERXFilteredQualifierTraversal, ERXPrefixQualifierTraversal

public class ERXQualifierTraversal
extends Object

Traverse a network of qualifiers until a traversal method returns false. Subclass and implement the methods you need.

Constructor Summary

Constructors

Constructor and Description
ERXQualifierTraversal()

Method Summary

Modifier and Type	Method and Description
void	traverse(EOQualifierEvaluation q) Visit every descendent qualifier in the given qualifier tree in a preorder traversal.
void	traverse(EOQualifierEvaluation q, boolean postOrder) Visit every descendent qualifier in the given qualifier tree.
protected boolean	traverseAndQualifier(EOAndQualifier q) Should traverse and qualifier?
protected boolean	traverseExistsQualifier(ERXExistsQualifier q) Should traverse exists qualifier?
protected boolean	traverseFalseQualifier(ERXFalseQualifier q) Should traverse false qualifier?
protected boolean	traverseKeyComparisonQualifier(EOKeyComparisonQualifier q) Should traverse key comparison qualifier?
protected boolean	traverseKeyValueQualifier(EOKeyValueQualifier q) Should traverse a key value qualifier?
protected boolean	traverseNotQualifier(EONotQualifier q) Should traverse not qualifier?
protected boolean	traverseOrQualifier(EOOrQualifier q) Should traverse or qualifier?
protected boolean	traverseTrueQualifier(ERXTrueQualifier q) Should traverse true qualifier?
protected boolean	traverseUnknownQualifier(EOQualifierEvaluation q) Should traverse unknown qualifier? Logs an error.
protected void	visit(EOQualifierEvaluation q) Catch-all visitor, will get called for each qualifier.

Methods inherited from class java.lang.Object

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

Constructor Detail

ERXQualifierTraversal

public ERXQualifierTraversal()

Method Detail

visit

protected void visit(EOQualifierEvaluation q)

Catch-all visitor, will get called for each qualifier.

Parameters:

q - the qualifier to process

traverseUnknownQualifier

protected boolean traverseUnknownQualifier(EOQualifierEvaluation q)

Should traverse unknown qualifier? Logs an error.

Parameters:

q - the qualifier to process

Returns:

should traverse boolean qualifier

traverseNotQualifier

protected boolean traverseNotQualifier(EONotQualifier q)

Should traverse not qualifier?

Parameters:

q - the qualifier to process

Returns:

should traverse not qualifier

traverseOrQualifier

protected boolean traverseOrQualifier(EOOrQualifier q)

Should traverse or qualifier?

Parameters:

q - the qualifier to process

Returns:

should traverse or qualifier

traverseAndQualifier

protected boolean traverseAndQualifier(EOAndQualifier q)

Should traverse and qualifier?

Parameters:

q - the qualifier to process

Returns:

should traverse and qualifier

traverseKeyValueQualifier

protected boolean traverseKeyValueQualifier(EOKeyValueQualifier q)

Should traverse a key value qualifier?

Parameters:

q - the qualifier to process

Returns:

should traverse key value qualifier

traverseKeyComparisonQualifier

protected boolean traverseKeyComparisonQualifier(EOKeyComparisonQualifier q)

Should traverse key comparison qualifier?

Parameters:

q - the qualifier to process

Returns:

should traverse key comparison qualifier

traverseTrueQualifier

protected boolean traverseTrueQualifier(ERXTrueQualifier q)

Should traverse true qualifier?

Parameters:

q - the qualifier to process

Returns:

should traverse true qualifier

traverseFalseQualifier

protected boolean traverseFalseQualifier(ERXFalseQualifier q)

Should traverse false qualifier?

Parameters:

q - the qualifier to process

Returns:

should traverse false qualifier

traverseExistsQualifier

protected boolean traverseExistsQualifier(ERXExistsQualifier q)

Should traverse exists qualifier?

Parameters:

q - the qualifier to process

Returns:

should traverse exists qualifier

traverse

public void traverse(EOQualifierEvaluation q)

Visit every descendent qualifier in the given qualifier tree in a preorder traversal.

Parameters:

q - the root qualifier to traverse

traverse

public void traverse(EOQualifierEvaluation q,
                     boolean postOrder)

Visit every descendent qualifier in the given qualifier tree.

Parameters:

q - the root qualifier to traverse

postOrder - if true, the qualifier is traversed from the bottom to the top