Class QueryTreeContext<T> (2.0.0)

public abstract class QueryTreeContext<T>

The base class for specific query tree context used by the walker. This class is used to maintain additional information gathered while walking the tree. On this level it is used to collect return type information.

Inheritance

java.lang.Object > QueryTreeContext<T>

Inherited Members

Object.clone()

Object.equals(Object)

Object.finalize()

Object.getClass()

Object.hashCode()

Object.notify()

Object.notifyAll()

Object.toString()

Object.wait()

Object.wait(long)

Object.wait(long,int)

Type Parameter
Name	Description
`T`

Constructors

QueryTreeContext()

protected QueryTreeContext()

Methods

addChild()

public T addChild()

Returns
Type	Description
`T`	a child context for this context

addReturnType(QueryTreeContext.Type type)

public void addReturnType(QueryTreeContext.Type type)

Parameter
Name	Description
`type`	`QueryTreeContext.Type` additional type to be added to current return types

children()

public Iterable<T> children()

Returns
Type	Description
`Iterable<T>`	iterable over all children contexts

getChild(int index)

public T getChild(int index)

Parameter
Name	Description
`index`	`int` the index of the child to get

Returns
Type	Description
`T`	the child context at the given index

getChildCount()

public int getChildCount()

Returns
Type	Description
`int`	the number of children contexts

getCommonReturnTypes(T other)

public Set<QueryTreeContext.Type> getCommonReturnTypes(T other)

Parameter
Name	Description
`other`	`T` the other context whose types are to be inspected

Returns
Type	Description
`Set<Type>`	a set of types common to this and the other context

getReturnTypes()

public Set<QueryTreeContext.Type> getReturnTypes()

Returns
Type	Description
`Set<Type>`	the set of return types

getText()

public String getText()

Returns
Type	Description
`String`	sets the text associated with this context

inDisjunction()

public boolean inDisjunction()

Returns
Type	Description
`boolean`	true if this context's lowest ancester compounding operator (AND, OR) is a disjunction.

isCompatibleWith(QueryTreeContext.Type returnType)

public boolean isCompatibleWith(QueryTreeContext.Type returnType)

Parameter
Name	Description
`returnType`	`QueryTreeContext.Type` the type to be checked against types of this context

Returns
Type	Description
`boolean`	whether or not it is compatible with at least one type

isField()

public boolean isField()

Returns
Type	Description
`boolean`	returns if this context represents a field of a document

isFunction()

public boolean isFunction()

Returns
Type	Description
`boolean`	if this context represents a function

isFuzzy()

public boolean isFuzzy()

Returns
Type	Description
`boolean`	whether or not the value associated with this context is rewritable

isLiteral()

public boolean isLiteral()

Returns
Type	Description
`boolean`	if this context represents a literal constant

isPhrase()

public boolean isPhrase()

Returns
Type	Description
`boolean`	whether or not this context represents a phrase (quoted text)

isStrict()

public boolean isStrict()

Returns
Type	Description
`boolean`	whether or not the value associated with this context must not be rewritten

newChildContext()

protected abstract T newChildContext()

Returns
Type	Description
`T`	a new child of type T

setInDisjunction(boolean inDisjunction)

public void setInDisjunction(boolean inDisjunction)

Parameter
Name	Description
`inDisjunction`	`boolean`

setKind(QueryTreeContext.Kind kind)

public void setKind(QueryTreeContext.Kind kind)

Parameter
Name	Description
`kind`	`QueryTreeContext.Kind` the kind of the

setReturnType(QueryTreeContext.Type type)

public void setReturnType(QueryTreeContext.Type type)

Parameter
Name	Description
`type`	`QueryTreeContext.Type` the unique return type for this context

setReturnTypes(Set<QueryTreeContext.Type> type)

public void setReturnTypes(Set<QueryTreeContext.Type> type)

Parameter
Name	Description
`type`	`Set<Type>` a set of types to be set as the only return types

setRewriteMode(QueryTreeContext.RewriteMode mode)

public void setRewriteMode(QueryTreeContext.RewriteMode mode)

Parameter
Name	Description
`mode`	`QueryTreeContext.RewriteMode` the rewrite mode for the value represented by this context

setText(String text)

public void setText(String text)

Parameter
Name	Description
`text`	`String` returns the text associated with this context

toString()

public String toString()

Returns
Type	Description
`String`

Overrides