ContentValues

public final class ContentValues
extends Object implements Parcelable

This class is used to store a set of values that the ContentResolver can process.

Summary

Constants

public static final String TAG

Fields

public static final Creator<ContentValues> CREATOR

Public constructors

public ContentValues ()

public ContentValues (ContentValues from)

public ContentValues (int size)

Public methods

public void clear ()

public boolean containsKey (String key)

equals

public boolean equals (Object object)

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

• It is reflexive: for any non-null reference value x, x.equals(x) should return true.
• It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
• It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
• It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
• For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

get

public Object get (String key)

Gets a value. Valid value types are String, Boolean, Number, and byte[] implementations.

getAsBoolean

public Boolean getAsBoolean (String key)

Gets a value and converts it to a Boolean.

getAsByte

public Byte getAsByte (String key)

Gets a value and converts it to a Byte.

getAsByteArray

public byte[] getAsByteArray (String key)

Gets a value that is a byte array. Note that this method will not convert any other types to byte arrays.

getAsDouble

public Double getAsDouble (String key)

Gets a value and converts it to a Double.

getAsFloat

public Float getAsFloat (String key)

Gets a value and converts it to a Float.

getAsInteger

public Integer getAsInteger (String key)

Gets a value and converts it to an Integer.

getAsLong

public Long getAsLong (String key)

Gets a value and converts it to a Long.

getAsShort

public Short getAsShort (String key)

Gets a value and converts it to a Short.

getAsString

public String getAsString (String key)

Gets a value and converts it to a String.

hashCode

public int hashCode ()

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by HashMap.

The general contract of hashCode is:

• Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
• If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
• It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

isEmpty

public boolean isEmpty ()

Indicates whether this collection is empty.

keySet

public Set<String> keySet ()

Returns a set of all of the keys

put

public void put (String key, 
                Short value)

Adds a value to the set.

put

public void put (String key, 
                Long value)

Adds a value to the set.

put

public void put (String key, 
                Double value)

Adds a value to the set.

put

public void put (String key, 
                Integer value)

Adds a value to the set.

put

public void put (String key, 
                Boolean value)

Adds a value to the set.

put

public void put (String key, 
                String value)

Adds a value to the set.

put

public void put (String key, 
                Float value)

Adds a value to the set.

put

public void put (String key, 
                byte[] value)

Adds a value to the set.

put

public void put (String key, 
                Byte value)

Adds a value to the set.

putAll

public void putAll (ContentValues other)

Adds all values from the passed in ContentValues.

putNull

public void putNull (String key)

Adds a null value to the set.

remove

public void remove (String key)

Remove a single value.

size

public int size ()

Returns the number of values.

toString

public String toString ()

Returns a string containing a concise, human-readable description of this object.

valueSet

public Set<Entry<String, Object>> valueSet ()

Returns a set of all of the keys and values