io.inversion.rql

Class Where<T extends Where,P extends Query>

java.lang.Object

io.inversion.rql.Builder<T,P>

io.inversion.rql.Where<T,P>

public class Where<T extends Where,P extends Query>
extends Builder<T,P>

Field Summary

Fields inherited from class io.inversion.rql.Builder

builders, functions, parent, terms

Constructor Summary

Constructors

Constructor and Description
Where(P query)

Method Summary

Modifier and Type	Method and Description
protected boolean	addTerm(java.lang.String token, Term term) OVERRIDE ME TO ADD CUSTOM FUNCTIONALITY TO YOUR FLUENT API
java.util.List<Term>	getFilters()
protected boolean	isInvalidColumn(Collection collection, java.lang.String column)
protected boolean	isInvalidColumn(Term t) Checks to see if a column referenced by a function call is valid.
protected Term	transform(Term parent)

Methods inherited from class io.inversion.rql.Builder

clearFunctions, find, find, findAll, findAll, findInt, findTerm, getBuilders, getParent, getRoot, getTerms, isFunction, parse, r, removeBuilder, toString, toString, withBuilder, withFunctions, withFunctions, withParent, withTerm, withTerm, withTerm, withTerms

Methods inherited from class java.lang.Object

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

Constructor Detail

Where

public Where(P query)

Method Detail

addTerm

protected boolean addTerm(java.lang.String token,
                          Term term)

Description copied from class: Builder

OVERRIDE ME TO ADD CUSTOM FUNCTIONALITY TO YOUR FLUENT API

Overrides:

addTerm in class Builder<T extends Where,P extends Query>

Parameters:

token - the token of the term (will be lowercase)

term - the term to add

Returns:

true if the builder or one of its child builders accepted and added the term

isInvalidColumn

protected boolean isInvalidColumn(Term t)

Checks to see if a column referenced by a function call is valid.

This function only validates the first leaf child of the supplied token in (FUNCTIN(COLUMN,...) format) and does not recurse.

To be considered valid the column name must match a Collection Properties' column name OR the Collection must be null and the column name must only contain alphanumeric characters and underscores and can not start with an underscore.

For example:

• in(COLUMN_NAME,1,2,3,4,5) - returns false if the collection has a property with the column name or if the collection is null
• in(COLUMN-NAME,1,2,3,4,5) - returns false only if the collection has a property with the column name
• in(_COLUMN_NAME,1,2,3,4,5) - returns false only if the collection has a property with the column name
• 'like' - any single token will return false as it is not in the FUNCTION(COLUMN,...) format
• or(eq(COLUMN_NAME,5), eq(COLUMN_NAME, 10)) - will return false as it si not on FUNCTION(COLUMN,...) format

IMPLEMENTATION NOTE: You may want to override this if you are using a document store (such as Azure Cosmos) that does not require each column to be defined.

IMPLEMENTATION NOTE: Terms that are passed into this function presumably have already been filtered by the Db object for known restricted columns.

Parameters:

t - the term to check for valid column references

Returns:

false if the first child is a leaf with an invalid column name

isInvalidColumn

protected boolean isInvalidColumn(Collection collection,
                                  java.lang.String column)

transform

protected Term transform(Term parent)

getFilters

public java.util.List<Term> getFilters()