org.apache.lucene.document

Class FieldSelectorResult

java.lang.Object

org.apache.lucene.document.FieldSelectorResult

All Implemented Interfaces:

java.io.Serializable

public final class FieldSelectorResult
extends java.lang.Object
implements java.io.Serializable

Provides information about what should be done with this Field

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static FieldSelectorResult	LAZY_LOAD Lazily load this Field.
static FieldSelectorResult	LOAD Load this Field every time the Document is loaded, reading in the data as it is encounterd.
static FieldSelectorResult	LOAD_AND_BREAK Load this field as in the LOAD case, but immediately return from Field loading for the Document.
static FieldSelectorResult	LOAD_FOR_MERGE Behaves much like LOAD but does not uncompress any compressed data.
static FieldSelectorResult	NO_LOAD Do not load the Field.
static FieldSelectorResult	SIZE Expert: Load the size of this Field rather than its value.
static FieldSelectorResult	SIZE_AND_BREAK Expert: Like SIZE but immediately break from the field loading loop, i.e., stop loading further fields, after the size is loaded

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object o)
int	hashCode()

Methods inherited from class java.lang.Object

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

Field Detail

LOAD

public static final transient FieldSelectorResult LOAD

Load this Field every time the Document is loaded, reading in the data as it is encounterd. Document.getField(String) and Document.getFieldable(String) should not return null.

Document.add(Fieldable) should be called by the Reader.

LAZY_LOAD

public static final transient FieldSelectorResult LAZY_LOAD

Lazily load this Field. This means the Field is valid, but it may not actually contain its data until invoked. Document.getField(String) SHOULD NOT BE USED. Document.getFieldable(String) is safe to use and should return a valid instance of a Fieldable.

Document.add(Fieldable) should be called by the Reader.

NO_LOAD

public static final transient FieldSelectorResult NO_LOAD

Do not load the Field. Document.getField(String) and Document.getFieldable(String) should return null. Document.add(Fieldable) is not called.

Document.add(Fieldable) should not be called by the Reader.

LOAD_AND_BREAK

public static final transient FieldSelectorResult LOAD_AND_BREAK

Load this field as in the LOAD case, but immediately return from Field loading for the Document. Thus, the Document may not have its complete set of Fields. Document.getField(String) and Document.getFieldable(String) should both be valid for this Field

Document.add(Fieldable) should be called by the Reader.

LOAD_FOR_MERGE

public static final transient FieldSelectorResult LOAD_FOR_MERGE

Behaves much like LOAD but does not uncompress any compressed data. This is used for internal purposes. Document.getField(String) and Document.getFieldable(String) should not return null.

Document.add(Fieldable) should be called by the Reader.

SIZE

public static final transient FieldSelectorResult SIZE

Expert: Load the size of this Field rather than its value. Size is measured as number of bytes required to store the field == bytes for a binary or any compressed value, and 2*chars for a String value. The size is stored as a binary value, represented as an int in a byte[], with the higher order byte first in [0]

SIZE_AND_BREAK

public static final transient FieldSelectorResult SIZE_AND_BREAK

Expert: Like SIZE but immediately break from the field loading loop, i.e., stop loading further fields, after the size is loaded

Method Detail

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object